So, when you set up a panel to autohide after certain amount of time (doesn't matter if it's the main panel or additional, user-made one) and check "bring back when user moves mouse" (the checkbox that lists all the different variations where mouse could be moved to bring back the panel, like upper-left screen corner, left edge, bottom edge, etc.) after clicking apply and letting the panel hide, moving mouse to the selected edge does nothing and the panel becomes completely inaccessible. I have to manually hide panels with buttons, because otherwise I can't bring it back.
No idea if it's the right place to bring bugs like that, just wanted to let you know as I've decided to main TDE from now on (so expect more reports like that, sadly can't contribute any code to fix those as I am not confident enough to write a good code and also I don't have a second machine to test stuff on).