Intro This is an issue that others are experiencing too.1 Just pulled and evalled latest bufler moments ago. Have multiple frames/windows running, eg C-x 2 M-x bufler choose one of the buffers from the list, to move to it See it close one of your other windows. I discovered this when it was eliminating my exwm workspaces upon choosing something, but I found that it is by no means limited to exwm things.