Yes I am. I'm beta testing android 10 and now it's not functioning. Its called black hole now after I uninstalled and reinstalled good lock and edge lighting. It doesn't work on my s10plus
It is to be expected for things to not work on the Beta. Please be sure you are reporting it through the One UI Beta app so that the developers are made aware and work towards correcting the issue.
Hey! A few Good Lock features/apps are not yet compatible with the beta version of Android 10 which could be your problem. They usually update the OS first before they update some of the Good Lock applications to ensure it works properly.