Black screen after unlocking the phone

[legalmenteluis]

When you leave an app open and unlock the phone a black screen appears. 

[Bishop_the_android]

It's a common bug. Please report it in the feedback section.

[TopherLee]

5th Beta being released... Will take care of the black screen issue...

https://www.sammobile.com/news/galaxy-s10-another-android-10-beta-update/

[dz0n3]

nice! I was wondering why that was happening. it wasn't too frequent but I did report it 😊

[SamsungUSABetaTeam]

Please try clearing the system cache and rebooting your device.

If issue persists, please send us an error report with screenshots from One UI Beta App (Beta Feedback -> Send feedback-> Error Reports -> "Select Category" -> Input frequency and Description" -> Send (Top Right Icon). We appreciate your help for supporting beta program.

[Toddman41]

yup my S10+ does this frequently