The MCP1702 is possibly not big enough. Its spec shows 250 mA continuous, 500 mA peak. The ESP32 has a recommended minimum supply current of 500 mA, and indeed, it will get up there when the wifi is transmitting. A pretty common LDO for these is LM1117-3.3, which can supply 800 mA continuous. You ca...

Just want to add our preliminary findings. Looks like the main reason for this high count faulty units is incorrect technician board manipulation and some exposed pins (not a real problem with the ESP32). These units have been shipped to a location where technicians are doing connections to these b...

According to your schematic, I'm kind of surprised that you didn't set something on fire or electrocute yourself. ARE YOU ABSOLUTELY CERTAIN THAT YOU ARE QUALIFIED TO BE PLAYING WITH A/C POWER? I would STRONGLY advise you to seek qualified assistance. Regarding your circuit; So there are a few thing...