- May 13, 2015
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Dear fellas,
This post is a collection for all the bugs, problems and suggestions that I collected according to my usage of W10M on a Lumia 1520, currently on build 10586.122, and what I have seen users complain about on forums, the feedback app and elsewhere on the internet.
The writer of this post acknowledges that there is indeed a feedback app, and has been using it to post bugs and suggestions, but since the list is too long, here is a complete list (that will be updated) intended to fix the current state for Windows 10 Mobile. And no, those issues won't be fixed with a hard reset.
I will be updating this post if anything else comes to mind, and will update it also with video and screenshots that shows each problem or suggestion properly.
Here is my full list:
- Proximity sensor bug: Sometimes when you remove the phone from a near object (i.e. your ear) it will show a blank black screen for a second, then the screen turns back off, then on again. (It should turn back on as soon as you remove your ear from it).
- Glance screen bug: When opening the Glance screen setting, nothing is there, and glance is not working nor the user is able to activate it.
- Cortana should sync notifications between your phone and PC, also, clearing a notification on one end should clear it on the other as well.
- Starting up a Windows 10 Mobile device from scratch takes a long time.
- No 4G or 3G only mode. It was there in one of the earlier insider builds but then got removed!
- Full screen jitter. See image below:

- When doing a soft-reset, the device prompts you to enter your cardentials again, which not only a password is enough for, but then an email verification, which is all cumbersome.
- Some older apps still crash and don't work well. Examples of that are the Here Apps and some older games like flick
- Battery problems: under perfect conditions, battery is still a hit or miss on W10M. Battery drain can occur with nothing running, and in general, it is less than what WP8 provided.
- Display brightness bug: Sometimes (especially at night) the low brightness setting is brighter than medium.
- Volume button bug: Sometimes the volume sliders show on screen like if someone pressed on a volume button, where the user didn't do scratch!
- The app list:
- Music controls:
- Battery settings:
- Data usage (settings):
- People App:
- Multi-tasking pane:
- Action Center:
- Microsoft Edge:
- Windows Mobile UI - General:
- Continuum:
- Live tiles and start screen:
- Outlook mail and Calendar app:
- Store app problems:
- Photos app:
- Keyboard:
- Camera app problems:
- Messaging app problems:
- The Dialer app:
Last edited: 03/08/2016
This post is a collection for all the bugs, problems and suggestions that I collected according to my usage of W10M on a Lumia 1520, currently on build 10586.122, and what I have seen users complain about on forums, the feedback app and elsewhere on the internet.
The writer of this post acknowledges that there is indeed a feedback app, and has been using it to post bugs and suggestions, but since the list is too long, here is a complete list (that will be updated) intended to fix the current state for Windows 10 Mobile. And no, those issues won't be fixed with a hard reset.
I will be updating this post if anything else comes to mind, and will update it also with video and screenshots that shows each problem or suggestion properly.
Here is my full list:
- Proximity sensor bug: Sometimes when you remove the phone from a near object (i.e. your ear) it will show a blank black screen for a second, then the screen turns back off, then on again. (It should turn back on as soon as you remove your ear from it).
- Glance screen bug: When opening the Glance screen setting, nothing is there, and glance is not working nor the user is able to activate it.
- Cortana should sync notifications between your phone and PC, also, clearing a notification on one end should clear it on the other as well.
- Starting up a Windows 10 Mobile device from scratch takes a long time.
- No 4G or 3G only mode. It was there in one of the earlier insider builds but then got removed!
- Full screen jitter. See image below:

- When doing a soft-reset, the device prompts you to enter your cardentials again, which not only a password is enough for, but then an email verification, which is all cumbersome.
- Some older apps still crash and don't work well. Examples of that are the Here Apps and some older games like flick
- Battery problems: under perfect conditions, battery is still a hit or miss on W10M. Battery drain can occur with nothing running, and in general, it is less than what WP8 provided.
- Display brightness bug: Sometimes (especially at night) the low brightness setting is brighter than medium.
- Volume button bug: Sometimes the volume sliders show on screen like if someone pressed on a volume button, where the user didn't do scratch!
- The app list:
- Dim-less app list after returning to it using the back button (from an app), or locking the screen then unlocking.
- The lag that occurs when swiping from the start screen to the app list. It is there since the WP7 days.
- A bug that occurs sometimes when tapping on a tile, which registers it as a swipe to the app list by mistake.
- No way to re-arrange apps by date added and most used, etc.
- Search button should be moved to the bottom of the screen to be closer to user's thumbs.
- Navigation bar for up and down (on the right side) has a weird behavior while scrolling (it changes position and size while scrolling).
- Music controls:
- When you first play a song, it does this weird stutter animation (like someone is pressing on next song button).
- Add back music controls to the lock screen (like Windows Phone 7.5)
- No skipping ahead in the same song (needs a slider with a timer for the song).
- Battery settings:
- Not showing the last time the device was taken off the charger (time since last charge).
- No option to show status since last charge. (Some people aren't interested in the whole last 24 hours, there needs to be status since the last charge).
- No visual display of how the battery is doing in time (battery vs time chart)
- In the background apps list, some of them are showing multiple times, some of them do not have an icon showing.
- If you press on an apps usage and show details then back out, the entry for that app disappears from the list of apps usage.
- Data usage (settings):
- Shows wrong information and stats.
- Usage information changes if you press on details and back out.
- Deleting the current data limit, and setting a new one doesn't accept the size of the limit nor the date of the newer one correctly (reverts back to the old limit info).
- The dialog box for adding a new limit is oversized and looks hidious.
- People App:
- No way to delete Skype users or block them.
- What's new pane is slow to pull down data.
- Visual appearance needs a major re-make.
- Scrolling in a long list of contacts can result in blank spaces (needs a fraction of a second to show back up again).
- Live tile shows blank circles. (Contacts without a picture shouldn't appear on the live tile).
- If you set up a new device, all the linked contacts in your Outlook account are not linked anymore (doesn't save changes on the cloud).
- Multi-tasking pane:
- A swipe down to close an app can get stuck at times. This results in the app jumping back up, and requiring the user to do this again with a larger swipe down to close the app. (I notice this more with Silverlight apps)
- On larger displays (eg. Lumia 1520), there needs to be a re-arrangement for the current open apps so that it's closer to your thumb. Currently, accessing the Multi-tasking pane using a back button results in showing the current open app in the upper left corner. It should be in the lower left or right corner so that it's near for the users thumb to close.
- (i.e. instead of 1 2 arrangement, it should be 3 4)
- 3 4 1 2
- Add a close all open apps button.
- Action Center:
- No music controls available.
- No notifications for currently downloaded items. i.e. a store app, or a background download.
- Make the action center translucent.
- Allow for widgets to be added to the action center (like iOS).
- A slider for brightness (enough with the limit of 3 options).
- A weird bug that happens sometimes after soft-resetting the device where the action center would stay blank.
- Microsoft Edge:
- Slowness in opening webpages.
- Problems in rendering some webpages.
- Empty squares when scrolling in heavy web pages (like Windows Central or the Verge).
- Failing to register a tap on a link while the web page is still loading.
- Input lag when you first scroll some webpages. This results in a stutter-like and jumpy scrolling.
- No forward button / swipe, and no back swipe.
- A simple web session can result in opening up so many webpages that aren't necessary; they don't close when you use the back button either.
- Open tabs menu doesn't clearly show what webpage you are currently on, and doesn't correctly order them in an understood way to the user. It needs a major re-make.
- Returning to a previous webpage (or a previously open tab) can result in it reloading from scratch. On iOS and Android it is usually still cached in memory and does that instantly.
- No background downloading or downloading under a lock-screen.
- Pressing on some buttons in webpages can result in selecting its inside text instead of performing the pressing action.
- A problem when trying to copy text from Edge to other areas of the OS.
- Navigation bar should auto-hide while scrolling.
- Windows Mobile UI - General:
- Hamburger buttons should be placed in the bottom left corner instead of the top.
- A universal swipe from the left edge of the screen API to access the hamburger menu hidden elements. If it is not universal, then it won't work well (i.e. Groove Music).
- More fluid animations, just like the ones in WP8. It seems that animations in apps are not that present, unlike earlier versions of the OS. This gives the impression that the OS is not that fluid.
- Accessing the settings menu from the action center makes a black animation that looks horrible.
- The sharing UI (for multiple files) should include a summary of info for the files that are going to be shared, their size, and how many, etc.
- Alarms should have separate volume controls than apps and phone.
- The dialog that pops up on screen should remove the theme-colored square that is on the 4 edges of the dialog box.
- Landscape orientation for the Start Screen.
- General UI elements placement should be closer to the lower edge of the screen (i.e. search bars in apps) to be closer to the users thumbs.
- Bring back the concept of hubs: The problem was never the concept of hubs itself, only the implementation. I don't see a problem where Microsoft could add up API's that allows for apps to integrate in hubs like messaging (imagine having a one up where you could text any user, either by SMS, Skype, Whatsapp, Facebook or any other app that the user is available on). This could happen, since apps can integrate in the people app for instance. This won't require an OS update to make changes to any service if API's where implemented correctly.
- Lock-screen notifications, and lock-screen customizations are really needed. If the older attempt on fixing that was slow and buggy, that should require adjustments to API's and an update, not to forget or remove this option.
- The in-call UI: It looks horrid compared to what we had on WP8.1. It lacks the beautiful large caller photo, and on a Lumia 1520, it doesn't scale correctly. In call audio recording should be added to older devices as well.
- Continuum:
- Add touch input when using Continuum on a touchscreen.
- At its current state, it is slow and laggy at times.
- There is no harm of displaying a blown up version of the non-UWP to use with continuum, until the developer releases his UWP version.
- Live tiles and start screen:
- Adding back the larger four-squared tile.
- Refining the long-press on an app's tile to change size: in this current way, it is hard to re-arrange tiles and mistakes it sometimes for making a folder.
- Adding the ability to turn off a live tile (like W10).
- Adding a swipe to the right (from left to right) over a live tile to flip it to the other side and update its info.
- Interactive live tiles. (Self-explanatory).
- The bouncy animation at the end of the list (upper edge or down) is inconsistent. Sometimes it makes a full bounce when scrolled from a far distance, other times it makes a stuttery short bounce.
- Allow for animated and parallax-effect backgrounds.
- Allow for high resolution backgrounds. (Currently, it takes a part of the image up to the resolution of your screen, but then extends that to larger size (as scrolling is added to it), so the image looks pixelated).
- Add the new flipping animation for tiles (like Windows 10 PC).
- Outlook mail and Calendar app:
- Renders some emails in a wrong way.
- Emails are not zoomed in to the correct amount when opening an email.
- There isn't a way to keep the aliases folders updated and synced when opened.
- Store app problems:
- Checking for app updates can take up to 40 seconds.
- Opening time is slow.
- App updates doesn't have notifications in the Action Center.
- If you lock the device while downloading, it will pause a download until you unlock the device again.
- Search algorithm problems: Apps that are not related still show in the suggested list. (i.e. typing Instagram in the search will show Fhotoroom even before 6tag in the list)
- App still crashes, especially when trying to access it from its tile, while it was launched before.
- While in "Downloads and updates", currently downloaded apps show wrong info "**.** MB of **.** MB" changes while it is still downloading, and is not correct.
- Lack of animations in the app in general gives the illusion of slowness to it.
- Photos app:
- App is still slow in updating the collection with new images.
- Scrolling in a large collection results in empty squares that take half a second to show up again.
- Flipping between images can cause a weird bug after a couple of images: the next image is displaced and sometimes another part of the image overlaps it in a weird way.
- Sometimes a living image won't play.
- Editing options are still basic. On Windows 10 there are tons of other advanced options.
- Panning an image and pinch to zoom are still laggy and stuttery.
- Keyboard:
- Autocorrect is not as good as it was in WP8.
- Sometimes it won't register a tap on a letter at all (especially in Edge).
- Sometimes it won't register the correct letter. There used to be a very good mechanism to detect the letter pressed on WP, now I am sure something has changed.
- Keyboard is inconsistent between some apps.
- A row for numbers in large screened phones is a must.
- Keyboard in landscape should add more buttons (like copy and paste buttons).
- Keyboard user additions for words should be exportable and backed up to restore later on.
- A new dialog for copy / cut / paste. A new one also for text input cursor and its position.
- Adding synonyms when selecting a word to suggestions.
- Changing the language using a swipe on the spacebar is a hit or miss. Most of the time it is regesterd as a press instead of a swipe.
- Keyboard keeps hiding sometimes especially when the app is loading something behind it. E.g. when using Microsoft Edge and it is loading a webpage, if you enter a text field the keyboard will keep hiding.
- Camera app problems:
- The camera can still fail to take shots at times, and display an error.
- Images are over-processed and in general bad looking compared to WP8.1.
- Focusing and taking photos is still slow compared to an iPhone or an Android.
- The great lenses concept is hidden and abandoned.
- Messaging app problems:
- App is slower than it used to be with WP8.1 (opening the app, loading texts, etc.)
- App still crashes from time to time.
- No animations present.
- Scrolling in a conversation fast will result in blank spaces that take time to load.
- The Dialer app:
- Cannot delete a number in the favorites list.
- Dial Pad is still laggy and un-responsive at times.
- A weird bug happens sometimes, and images of contacts in the "History" pane don't show up.
- The back space button is placed far from the user thumbs and is unresponsive at times.
Last edited: 03/08/2016
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