The Tasmota MQTT firmware works without any issues on the same board with the following flash command
esptool.py --port /dev/tty.wchusbserialfd12240 write_flash -fs 1MB -fm dout 0x0 tasmota.bin
So it looks like it's not the board part itself.
@opichals started
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The Tasmota MQTT firmware works without any issues on the same board with the following flash command
So it looks like it's not the board part itself.