Crashing When Fairies Change Form

I've found a bug that's been persistent for the past few days. I have a household with several fairy sims, and sometimes when they switch between human and fairy forms, the game outright crashes. I've found this happens in a specific situation, namely when they're being switched to human form from fairy form, but the visuals don't load (leaving them with just no wings but otherwise visually still in fairy form), and you try to tell them to change into human form again. I've gotten in the habit of saving the game before changing their forms just in case. I do use mods, but after testing without them installed, it didn't crash the game...but it did make my poor sim into a weird hybrid of her human and fairy form. Here are screenshots, first of the "hybrid", then her fairy form, then her human form.