MCPE-165136Swimming above incomplete non-waterlogged blocks causes the player to glitch
When playing Minecraft on the Nintendo Switch, the player glitches when trying to swim on top of trapdoors or slabs underwater.
How to recreate this (on Nintendo Switch):
1. Place trapdoors or slabs on the bottom half of a block underwater.
2. Swim on those trapdoors or slabs but make sure to be in the swimming animation at the same time.
I have also added a link to a video showcasing this glitch (flashing warning):
