flashing icons, photos closing and email chimes

[Dala Mar]

Just a few things I have noticed.
A cool one is that at night the notification centre icons flash.
No ringtones for incoming text or emails despite notification centre sound on.
And when setting in photos not linking duplicate copy and phone photos, photos open then close a second later.

 

[Ed Boland]

Have you done a hard reset after installing the preview? Likely to solve all of these issues.