The new Microsoftslop copilot key always sends the following key-sqeuence when pressed:

left-shift-down left-meta-down f23-down f23-up left-meta-up left-shift-up

This there’s no real key-up event when you release the key --> it can’t be (properly) used as a modifier like ctrl or alt.

The workaround is to send a pretend key-up event after a time delay, but then you mustn’t be too slow / fast when pressing a shortcut.

tldr: AI took a perfectly working modifier key from you.