Hi ajb2k3 & teastain, thanks a lot for your advices. I will look at micropython side but I'm very concerned by the fact that the UIFlow blocks I used have been deprecated without notice. I'm on a very bug hurry now. I went back to V1.9.8 firmware on my M5StickCPlus and M5Core and everything is working again now. At least temporarily. Have a good week

unless the block is stacked together. else you can't remove or select them at the same time.

Hi, Are you using step motor driver v1 or v1.1? Microsteps function supports v1 and does not support v1.1 [image: 1692080962672-58079694-f05e-44e4-aab7-ea4f39cdf1a2-image.png] [image: 1692080983181-a0b32398-98a0-4838-8ea7-a0f068c7d017-image.png] [image: 1692081215154-69b78769-83b5-4b8d-8680-198bc76f1734-image.png]

Same problem for me, losing all my timers :( [image: 1644145407119-5c98c2af-df3a-4c32-bd90-bafb03cfb300-image.png] [image: 1644145384849-1c8edf7f-4547-48c0-bde5-f70167373008-image.png]

Yes, this is a common issue with M5Stick C flashing. Try holding the G0 button while connecting the USB cable to enter bootloader mode, then start the flash. Also, double-check your USB drivers and try a different USB port directly on your PC (avoid hubs). If problems persist, adding a 10µF capacitor between EN and GND can help stabilize the reset line. Make sure the serial port is correctly selected, and close other apps using it. This usually resolves the “Failed to connect to ESP32” errors.