I did some further testing. It turns out that something else is breaking the bluetooth. Namely from outside when I try to connect with ide and it fails, then Make Connectable doesn't work/recover it unless I use 'Turn Off' feature.
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 did some further testing. It turns out that something else is breaking the bluetooth. Namely from outside when I try to connect with ide and it fails, then Make Connectable doesn't work/recover it unless I use 'Turn Off' feature.