I play on a mac and I've been experiencing this a lot. Sliding all over the place, getting stuck on things I was trying to avoid but instead sliding right into them. It often feels just like when you're walking along an invisible wall so instead of going forward it slides you sideways, except in this case instead of turning when you meant to you're still sliding forwards. In the past I've only experienced this much sliding when jumping on top of something that isn't meant to be walked on like landing on certain mushrooms or rooftops where it sends you into a long slide way out of the way from where you thought you'd land, only.... this is happening on the ground where we normally would have traction.