visiting neighbors research labs

When I visit others research labs I am often getting a drop of a head bust statue that goes into a collection called 'NULL'. Anybody else seen this?

I also now have an entry in my collection (number 30 in the list) called 'Null' that gives a reward of an Atomic Model.

I just had the same thing.

I thing GI bug as they may have unlocked a collection that may be part of a future update or they haven't given it the proper collection name.