Hi, this issue was solved. Easy and logical way:
VScode > PlantformIO home > plantforms > update
I am not sure if everything is OK but I reinstalled esp-idf framework again.
It works with some other Esp32-S3 boards.
This is my platformio.ini:
platform = espressif32
board = m5stack-stamps3
framework = espidf
And here some messages when trying to compile:
Processing m5stack-stamps3 (platform: espressif32; board: m5stack-stamps3; framework: espidf)
Error: Unknown board ID 'm5stack-stamps3'
The terminal process "C:\Users\XXX.platformio\penv\Scripts\platformio.exe 'run', '--environment', 'm5stack-stamps3'" terminated with exit code: 1.
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