Using adafruit-wippersnapper-samd51-metro-airlift-1-0-0-beta.5.uf2 on the m4 feather express.
USB device appears and then disappears about 10 seconds later - repeat.
I am running an ESP32 HUZZAH32 with beta.5 successfully.
Beta5 boot loops on feather m4 with airlift featherwing
Re: Beta5 boot loops on feather m4 with airlift featherwing