@jumjum - it's good to know the release ones work...
Now, I wonder what is up with your versions? Have you got the math lib .o file that was introduced a while back - I guess you must have otherwise it would not build?
The other thing to try would be an erase first, then a flash.
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.
@jumjum - it's good to know the release ones work...
Now, I wonder what is up with your versions? Have you got the math lib .o file that was introduced a while back - I guess you must have otherwise it would not build?
The other thing to try would be an erase first, then a flash.