Water and Lava bug

Hello! I recently found a bug which for some reason doesnt let me swim at water and lava. It seems to have multiple ways to trigger it. Here is a clip i made of the bug: https://medal.tv/games/minecraft/clips/mRunAOSvovKthe6W6?invite=cr-MSxkenQsNDkwMzE0ODg0&v=11

I also died once for not being able to surface normaly at lava.