Thanks. I will check that thread. I did PM him but I imagine that he is fairly busy.
I have Verizon so I am on 8.1 Denim. I will try to uninstall and reinstall. I've rebooted a couple times, which did not help.
You said in your original post that you are, "I'm doing the insider program", then just said you are running WP8.1/Denim. Which is it? Do you have the Windows Insider app installed, and running WP8.1/Denim, or do you have Windows Mobile 10 Technical Preview (TP) installed?
Just by installing the Windows Insider app, doesn't mean you are actually running Windows Mobile 10 TP.
If the latter, then it is likely the app hasn't been updated for Windows Mobile 10. He stated in the details that v6 is delayed because of Win Mobile 10. As Glen stated, Window Mobile 10 TP is beta software and hasn't even been released to developers yet. Developers won't start working on apps until they get a stable final release (i.e. the same version that goes to the carriers (minus firmware)).
In either case, try going in this order:
1. Soft reset - try App
If that doesn't work, then:
2. Uninstall app, reinstall, soft reset - Try app
If that doesn't work, then you have less options.
1. Contact the dev (which you have done), and hope he is updating/fixing it.
2. Do a hard reset and hope it works when you reinstall it. The last option is the last resort, and still won't guarantee it'll work; regardless if you are running WP8.1/Denim or Win Mobile 10 TP.