ESP devkitc v3 vs v4 and CAN network

[Ztefan]

Hi,
I developed a software using internal CAN controler on Arduino IDE.
The same code with any change work perfectly on ESP32 devkitc v3 and not v4 .....
I succed to used CAN network on v3 and not on v4
I don't identify somthing different between v3 and v4
Someone have already detect this problem ?

Rgds

[ESP_Dazz]

The the chip revision of the ESP32 chip on each board the same (i.e., what ECO version are the ESP32's)?