Just got a world drop called the band of the unicorn which was missing the collected or not collected info on the top right of the tooltip, but has the drop source info. I dont know if this right or not but just wanted to mark the issue in case, please see attached.

Since this item is a Ring, it does not have any associated appearance or transmog to learn, so it cannot be 'collected' nor 'not collected'.

ah okay i see thanks.