The V1.1 version (and prior) has two issues: - ZIP LEDs can "flash" every 10 minutes or so. This gltich was [caught on video at 04:25](https://www.youtube.com/watch?v=lpnIn2PC4GA). https://github.com/microbit-foundation/micropython-microbit-v2/issues/227 - About every half day when left in digital rain mode it can produce 030 errors (`DEVICE_HEAP_ERROR`) on the micro:bit These aren't likely to be issues with the program, most likely to be MicroPython 2.1.2 bugs. [MicroPython 2.1.2 has poor time-keeping](https://github.com/microbit-foundation/micropython-microbit-v2/issues/225) but this can be corrected with a large ppm value in `config.py`.