Why has my quick menu disappeared and my recent apps buttonstopped working

[Android Central Question]

Samsung Galaxy tablet s

 

[mustang7757]

This happen with a update? Have you tried safe mode?
I'll leave a link to register so you can communicate here , as a guest account you can't.
https://forums.androidcentral.com/showthread.php?t=409154

 

[B. Diddy]

Welcome to Android Central! Does this persist in Safe Mode? https://www.t-mobile.com/support/devices/android/samsung-galaxy-tab-s/safe-mode-samsung-galaxy-tab-s