It's possible that you hit an issue with the bootloader in earlier firmwares and it hasn't updated. Maybe try going to Settings -> Utils -> Rewrite settings and see if that helps?
If you're running the Web IDE, when you switch apps, do you see any error messages?
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I can pretty much guarantee it's fine.
It's possible that you hit an issue with the bootloader in earlier firmwares and it hasn't updated. Maybe try going to
Settings -> Utils -> Rewrite settings
and see if that helps?If you're running the Web IDE, when you switch apps, do you see any error messages?