b7a55a86c3f64f9392cf5094a7945c02
As the topic say it recommends me to not use pants, but only when I’m fire, frost and arcane are fine.
There is something really wrong here…
Frost and Arcane lose your Waist slot, too… 
Do you actually play all three spec’s…?
Have you got the newest version of the add-on…?
If yes, then maybe try a full ‘naked Equipped’ export & delete the spec’s you don’t use on the site, after a full bank/bag check, too.
We’ll take a look, not quite sure what is going on in this case.
I’m working on fire mages over the next day or two - doing a bunch of stuff that I never quite finished. I’ll make sure it’s working when we update it later this week.
We just posted an update that should resolve this issue.
There we go. wearing pants/skirts slot is ok again.