I concisely described the problems in the screenshots; read the below description IF needed.
The bottom bar on the Android Emulator showing the three hardware buttons (square/circle/triangle = Overview/Home/Back, respectively) suddenly disappeared. They were there the night before. Next morning, poof! Gone.
Ok, so the three buttons don't show on the emulator. So then I use the SIDE PANEL which ALSO shows the hardware buttons. HOWEVER, the square Overview button (⌘O) (aka the App Switcher button) in the side panel DOESN'T WORK. This means I can't open the app switcher now (where you see all apps running in the background).
So the hardware buttons on the screen have disappeared, and the side panel (as a backup) that also has these buttons -- well, ITS square Overbutton button (⌘O) doesn't work, so the side panel is not helping either.
I used the AVD manager to add a replica of the device, and it fixed the issues, but then after some days, the same issue occurs again. I'm using MacOS.
Any suggestions? Thanks much!
IMAGE: App Switcher (Overview) button not working
IMAGE: Hardware buttons that look like these no longer showing