I was enchanting a lot of spell gems and when I selected Molten armor it opened up the stat page for one of my artifacts.
I got the molten armor from mass transmuting all of the enchanted gems before this.
I could still invisibly apply enchants to the spell gem without the correct dialog box(I expected the game to crash though).
It still opened the same artifact page after repeated selections of the spell gem.
The problem did not reoccur after I closed out of the enchanting station. The possible enchants showed up.
All in all very odd.