Had this happen for a shield I bought from the store as well (winged shield). Lowest upgrade tier, cannot be upgraded at Gunnar. May just happen at random for premium items?

It keeps crashing after half an hour to an hour of playing. Had this problem before the patch as well, but the after 1.04 it seems to be far more often. Playing on the PS4.

Hello, I bought the Winged Shield from the store, and it is stuck at "superior" quality rather than "mythical" like everything else. It also has no unique perk, and cannot be upgraded at the blacksmith. I bought it independently from the Valkyrie set if that makes a difference.