So I found the Issue I think, something in my Tooltips crashed if the Tool does not have a normal Handle, which in case of Electric Tools is easy to see. Lovely when Vanilla Tooltips Crash without any hint of an Exception or StackTrace or ANYTHING AT ALL!
This Version should probably be working for you. ^^
(note 1: The scary sounding Description is only there to make sure people don’t use that Version lightly.)
(note 2: if you use this Version more often, make sure your Browser didn’t cache the Download)