If you're wearing a backpack from Quark, then open the recipe book, the icon from this mod gets stuck in the backpack inventory until the next close and re-open the inventory GUI.

Can you provide a screenshot?

This is what it looks like after clicking the recipe book button with the animated recipe book mod installed. If the mod is uninstalled, this doesn't happen. Also, as you can see, the Curios button gets messed up as well.

Alright, I see, thanks. And the Curios button is messed up even without my mod, right?

Edit: Yeah, Curios button is still messed up without the mod, my bad on that.