on my P20Pro Android 188.8.131.52, something happened with my Logitech K380 BT keyboard ; suddenly the alt-tab combination stopped working.
I tried with another keyboard, same problem. The direct button "recent apps" stopped working too, it only does a tab now.
The other combinations and shortcuts work, just not this one.
I used the Android key test app and pressing alt-tab shows keycode 57 with KEYCODE_ALT_LEFT on.
Any idea ? Thx