So about a week ago I noticed that I''d randomly have an item appear in my inventory that I didn't know was there, I just recently connected it to when I do the Galley; each time I get two items instead of one. Today I made sure I didn't somehow double click on any of the links to a hidden rat/Dirty Matty, and it still gave me two! I'm not sure if this is a glitch or a new feature? But I figured I'd double check.
EDIT: I know you're not supposed to report item duplication things on the forums, but I'm not sure what's even happening. Using the latest version of Firefox on a Windows 10 HP Pavilion (desktop).