When going to the home menu with Minecraft suspended in the background will cause a communication error when you go back into the game which will then log you out of your Nintendo account.

How to reproduce: Have Minecraft open and then press the home button to go back to the home menu and wait for about a minute and then go back into the game

What happens: Communication error appears and logs you out of your account (Probably due to the game being unable to communicate with any online servers while it is suspended)

What should happen: Game resumes as normal without any errors or online disconnections