Sometimes the familiar just dupes itself.

[orckine]

I'm having this issue where my bookwyrm just keep duping out of the blue.
It just happens to appear and i can't dispel the duped wyrm even with the spell, i can even summon the original one and dispel it at will and this one doesn't bother at all.
its breaking my farms because all the items are just being sucked to my inv.
Choosing another familiar wont fix it either.

[orckine]

I'm trying some different means of making it disappear, and i just found a workaround:
If you have Carry On mod, you can grab the undying undispellable duped familiar and place it around, and for some reason it will be counted again as a familiar, using the dispel keybind will make it disappear together with the real familiar.