Basically every single time I run/ride a boat/ride a horse/ fly an elytra for 10+ seconds without stopping, the whole game will stop working. Like, I when I did this and I looked around I could see through everything. There would be blocks missing. All the mobs would freeze when this happens. If I tried to press the chat, settings, or inventory buttons, there would be a loading symbol in the middle of my screen. No matter how long you wait, though, it will never load back. I would have to close out of my game and open it back up to get it working again. 
Tbh, it’s annoying and I hope I’m not the only one who has this.