I started a new world with snapshot 21w41a and got in a boat to sail around. When I tried to get out of the boat, I was unable to. Left shift, space, and right click did nothing. I ended up using the teleportation command to move 10 blocks up to get out of the boat.
I got in the boat again to see if it was a one time thing and it happened again.
Comments 4
I should of mentioned it before, but this is a fresh install of Minecraft. All I had done since opening the game was mess around in a new world. I am guessing it was a weird one time bug sort of thing, since once I next opened the game after closing everything it was working again. I want to mention that when the issue was happening, there was no prompt that said to press the left shift to dismount. I guess if anyone else has this issue, close everything and reopen it.
try going to the control settings and checking if the control for leaving entities is changed.