I didn’t notice it was an esp32 c2 and i’m not as familiar with those boards as I stick with the tried and true esp32 boards. These boards are still very new and issues are still being worked out, plus they’re not even fully supported yet so you’re just asking for problems unless you like seeking out bugs. I still suspect it’s a power issue, if it’s not the PSU then the next logical place is the onboard regulator being the issue. If you have another board, i’d try it.