Thanks for the report!
Your files are not gone - Mac OS Finder considers files and folders whose names start with dots to be hidden. You can still reach the folder via Terminal and rename it to something visible.
Go to the parent folder:
Code:
cd <parent folder name>
View contents including hidden files:
Rename the bad folder to something without the dots:
Code:
mv "... offending title" "offending title"
It was an oversight on my side that such scenario is allowed, it will be addressed shortly. You cannot actually delete any files this way - only hide them.