Per Uploading to any ATMega 32u4 based board is still broken · Issue #196 · platformio/platform-atmelavr · GitHub a “Verbose Upload” might work, maybe because it introduces some delay that is just enough so that the COM port is stable?
Per Uploading to any ATMega 32u4 based board is still broken · Issue #196 · platformio/platform-atmelavr · GitHub a “Verbose Upload” might work, maybe because it introduces some delay that is just enough so that the COM port is stable?