Since 9.1.2, the class action bar isn't working properly. It's stuck at the middle of the screen and can't be moved
I downgraded to the 9.1.1 that works fine

Addon Version
9.1.3-classic

World of Warcraft Version
1.14 ERA

are you seeing any error messages from Dominos in the chat log?

I don't seem to be able to reproduce it anymore, I'll close the issue until it popup again.
Sorry for bothering and thanks for your answer