This seemed to happen when the game was auto saving. After a few times of this happening I now can't even get my world to load. This world was created using version 1.11.0. All other worlds seem fine. I've tried resetting my switch to see if that helps. Also nothing is showing in the system error log so I doubt an error report is being sent for this crash. If it helps I was in a village when the last crash occurred.
Edit: Deleting the game and re-downloading it doesn't fix the problem.
Edit #2: Moving game from SD card to internal system storage doesn't fix the problem. Also checking for corrupt data doesn't fix the problem.
Edit #3: I also tried uploading this world to realms (uploaded fine) but every time I try connecting to realms it wont load the world. It doesn't crash the whole game but it does say things like "disconnected from server." I tried this on my switch and phone (Samsung Galaxy S8 with android 9.0). I also tried downloading the world on my Switch but it still crashes. When i tried downloading and playing this world on my phone it just closes the game and displays my home screen.
World size: 16.3MB
Approximate Location when crash happened: X: 992 Y: 74 Z: 1370