On Nintendo switch it crashes

Have you tried restarting your Switch (hold down the power button until you get a black menu, and select restart)?

I have the same Problem, restarting doesn't work too

Same problem. I’m convinced the switch hardware is just struggling to cope.

Same issue. Did hard reboot of the switch that did not help. At startup it crashes almost immediately saying “a software error occurred”

What kind of testing is being done before a release? It looks like not much if such a serious fault is not prevented?

Same problem. Tried so many things to fix it. Paranoid that my worlds will be inaccessible. Really hope Mojang fixes.

Thank you for your report!
To evaluate this issue we will need reproductions steps and attachments like video of the game crashing.
Also provide the exact model of your switch please.