I recently changed my emails to using Thunderbird. When I added my 3rd email account, I was going through sorting folders (moving and re-naming) and it deleted a heap of my sub-folders and I can't find them anywhere - they're not in trash with the stuff that I actually deleted. 2 of the subfolders are randomly there as their own folders now and when I hover over them they still have the name of the old main folder as like "folder/subfolder". When I was moving the folders around it kept popping up with errors but still doing what I asked until this happened. Not sure if it's not syncing properly and the lost emails and folders are somewhere I can retrieve? I'm worried I'll lose more of my emails if it's not syncing properly. It always has a blue loading bar down the bottom right as well, not sure if that's associated (it has a heap of actions when I double click on it but nothing to do with the folders I'm missing).