undo suddenly unavailable Logic Pro X 10.5
I am suddenly unable to undo in Logic Pro X version 10.5!! I've just accidentally dragged a guitar track onto the drum track and not only is everything out of sync, the f'ing drum track it was dragged over is now gone. This is completely unacceptable for a 'Pro' software and has completely screwed this project and I'm on a timeline. (Please refrain from "should've done"s and other useless, unhelpful comments.) I am not a new user, have used macs since 1997, and have never seen undo not available in even the most basic of programs.
If someone has a pro solution, please advise. Apple, I expect a response.
MacBook Pro 16″