That could be a good start in case there's something strange going on with your watch's config. I definitely haven't seen this behaviour on any other devices.
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.
Wow, that is a strange one...
Yes - try https://www.espruino.com/Bangle.js#resetting-without-loading-any-code and then https://www.espruino.com/Bangle.js#deleting-all-code
That could be a good start in case there's something strange going on with your watch's config. I definitely haven't seen this behaviour on any other devices.