Unable to place item into Async Trade Storage.

Hello,

I just converted a few of my Premium Tabs into Async tabs and I was unable to place items into the Async tab I initially purchased when the mechanic came out.



As you can see it just shows red underneath, almost like a remove only tab, but this is in my main selling window that I've been using for a few weeks now.

I've tried relogging, changing instances, etc. No clue.

Any ideas?

It stopped after some time. No clue.