This bug was here for 1 year, however I thought that it could be solved before the official release, but now I see that maybe this was never reported before.

So, if you use LILYGO LORA devices with 1.20.0 and use BLE code like that:

https://github.com/antirez/freakwan/blob/main/bt.py

The ESP32 device will immediately crash (restart or alike). This bug did never happen with the old stable version, 1.19.1.
This was tested in multiple devices. Basically everybody trying FreakWAN with 1.20.0 has this issue, and we have to tell people to install 1.19.1 to work with it.

The issue is always reproducible. However if you want a self contained Python file creating the issue without the rest of FreakWAN, just ask me. I believe this bug is critical because it does not allow to use the latest MicroPython build with very popular ESP32 devices.

In want to use this last line to say thank you for the wonderful project that MicroPython is. Thanks.