Thanks for that. I have loaded all the libraries. I have tried choosing M5StickC or ESP32-Pico for the AtomMatrix. Neither the Atom, nor the M5StickCs will load. I can load after powering up with G0 grounded.
I have OSX 10.10.5. I have tried the Updater_FW20200422 py program, but it fails.
Thanks for any advice!