We have released an update to address freezes on the Switch. If you do see the game freeze, please double check your version is v 1.4.4-sw2 at the bottom center on the start menu.
If it appears to be on an older version, please exit the game, select it from the home screen, press the + button, and select the options to update via the internet.
If you are on this version or later and are seeing it, please report this to us using the Submit a request option on the top right of this screen, along with any information about what conditions you are seeing this happen under.
And thank you so much to everyone who has helped us investigate this issue!