I recently purchased a Samsung Tab S3, moved my apps over including KLWP and everything was working fine until I got an OS update. Don't know what they were before but now they are:
Android version: 8.0.0 (Oreo, I believe it is the same as before)
Samsung Experience version: 9.0
Kernel version: 3.18.71-13482624
I was just getting a gray screen before, now I get a screen with LOADING but nothing loads.
normal Android stuff functions OK, IE: icons show and work and apps work.