Spine's editor has an issue right now that's making it key random sliders whenever Alis does basically anything - she's been fighting against it the whole time we've been working on this Hiro project and it keeps inverting the hand as a result, and this time she checked for it, but didn't notice the wrong hand had gotten randomly keyed, and I didn't check her final export because she was just fixing a minor issue on one of Hiro's outfits and we'd already checked over the deployment. It's already been hotfixed.