BIAB is doing something really strange and I am hoping someone else can advise on how to fix this.

Sometimes when I am entering a new song I can no longer type chord letters into the cells and instead when I type a letter, BIAB plays a sound like a MIDI note. The only way I have found to make it stop is to save my songs, close BIAB and start over.

Very frustrating as it is happening almost every session njow.