Yes, I'm talking about Windows Language bar (Input language hot key). Current settings:
https://ibb.co/cvvWcZs
I just switched from Sigil 0.7x, where did not have any problems.
I did not set any additional shortcut in Sigil.
What is „QtKey”, and where is setting for it?
Problem appears even when i don't have any ePub open. Just start Sigili, press ALT + SHIFT + 2 and it blokcs.