Artificer infusions stuck after losing access to content and regaining it

The person sharing access to the Tasha book with Artificer in it temporarily moved sharing to a different campaign, then put it back. My artificer now has access to the infusions etc. again. The infusions were originally set on specific items, but they currently say they are not on any items and no items are benefiting. But the option for each one is "remove infusion" instead of "add infusion". If I hit that though, I get an error page ("rolled natural 1"). I also get an error page if I try to unlearn the infusion in the level up editor.