I opened the link in your comment and found the information:
MH ET LIVE ESP32DevKIT does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.
I think it is the problem
I opened the link in your comment and found the information:
MH ET LIVE ESP32DevKIT does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.
I think it is the problem