|[Bug]Can't use tabs|
I can assure you that tabs are not broken; it's more than likely that you are not naming the tabs the same thing, so they won't work.
In the tab tags, the names need to be exactly the same, so trying to make a tab named like this wouldn't work:
[#Hello]Test[/#This isn't working]
Whereas, naming them like this would work (as they are named the same):