One of them is a weird swimming animation. Rather than treading water or swimming it's like you're jumping up and down very quickly and repeatedly. This happened in Hivory Towers most notably beside the Kirkhope pagie.
The second happened happened in the Icymetric Palace. When jumping on the platforms that were on fire and then extinguished, you can not double jump for whatever reason. I had to awkwardly spring jump after putting the flames out on previous goes. I'm very happy the flames didn't reset. These things are making it very difficult to want to play the game if I'm honest unfortunately. There are a tad too many frustrating moments through physics, camera, environment or crazy asks in tasks.