I was using Cow Chorizos to finish off FEP bars. Later on, I slaughtered a bull and made more chorizos, and I went to grab the remainer from my table and stow them all away.
The table was cluttered with a bunch of other kinds of food as well, so I tried to shift-click just the chorizos, but they just moved to a different space on the table. It only happens while not seated at the table, but removing them makes them jump back onto the table. My bagels and blue cheese were similarly stuck. Scrollwheel moving works normally.
I am reminded of seedbags, but tables don't have any reason to act like seedbags.