Bluetooth & 'nano'
I use the editor 'nano' when I connect via ssh. Recently, I attempted to edit a file using nano with a Bluetooth keyboard. There were some strange artifacts happening on the screen...unexpected characters, I could see the shell even though I was in the editor program, and finally, after exiting nano, no further keyboard input was displayed.
Dalton Ellis commented
I had a similar issue using bluetooth keyboard with vim. Hitting the alt key with mine made the emoji screen pop up. May or may not have been in insert mode at the time and following this, the keyboard shows weird output and refuses to interact correctly with anything I am typing in vim and even carried over when I was able to close vim. I could recreate this twice and at that point I tried a different terminal program and the issue did not occur.