But this bug is in stable build 20H2, 20H2 Beta.
It isn't a bug as noted above.
Holding down ctrl tells WindowBlinds to not skin a process and you will have ctrl held down from that hotkey combination.
You can disable WB from looking at the ctrl key by creating the following registry key :
Give it a type of REG_SZ and a value of 0.
Be aware that it will stop you using ctrl to exclude processes on launch.