Thank you, I will try that (although I would be surprised if the board really had power supply issues). In the meantime I simply reduced the flash frequency from 80MHz to 40MHz and (for now) the stability seems to be much better (in other words: board has been running for 10 minutes now and not cras...

I am developing an application using the ESP32. Custom 4layer PCB, bare ESP32 chip and 16Mb of flash. The board uses a SMD stamped metal antenna. However at the current stage the ESP32 is crashing frequently and randomly with errors like this: Guru Meditation Error: Core 0 panic'ed (LoadProhibited)....

The problem is similar to other threads like https://www.esp32.com/viewtopic.php?f=19&t=5004 Arduino 1.8.5, esp-wrover-kit The board is supplied from a beefy programmable power supply (set to 5.25V, capable of 5A) through the external power jack, using thick <20" short cables. I flashed the Arduino ...