In PIM listview the active column is represented by a red cross (inactive) and green checkmark (active).
It is possible på click the red cross to activate the product, quickly after loading finsihes it changes to green checkmark but instantly changes back to a red cross.
This makes the product appear to be inactive in the listview, but when looking at the productview it is marked as active.
It is also not possible to click the red cross to again to make the product inactive again.