So it seems that characters who were level 110 can no longer use their unlocked artifact transmogs after pre-patch

I was playing around with the new character creation and transmog stuff, and I noticed that when I tried changing weapon transmog to any of the artefact weapons it would do nothing...no error, transmog didn't change, nothing...

Then I noticed that the transmog my (only) warrior has equipped is listed as "You have not collected this appearance"

Here's some screenshots of the issue and proof I have it unlocked: https://imgur.com/qn0zO80

TL:DR Be careful when transmogging on your level 45 characters, you might not be able to change back without levelling to max!