Okay a related but not exactly equal topic is the M5stack Paper help, helloworld does not execute, default platform.ini seems broken. I have a working guess with using M5Stack boards with their M5Stack core fork instead of Arduino-ESP32. Fundamentally it’s the same concept with the Heltec fork.
But wow, what a horrible core to work with. The 0.0.5 and 0.0.6 board package (so, you’re using an outdated version btw.) referenced here are some version of Arduino-ESP32 but with the original version info and all PlatformIO related things (package.json + builder scripts) erased. Not nice.
- Can you check whether your program still works with Heltec 0.0.6 version in the Arduino IDE?
- Can you check whether your program still works with Arduino-ESP32 2.0.3 in the Arduino IDE?