Hello, I'd like to report a strange phenomena that I found while testing BCM with CAN FD related stuff. When I have set up a CAN FD frame for a cyclic transmit, and then delete it with a TX_DELETE bcm msg, I run into EINVAL due to the fact that I did not set the CAN_FD flag in bcm flags. I did set bcm flags to 0 like I do for classic can frames. I'm not sure if that EINVAL actually makes sense because afaik that CAN_FD flag was introduced to switch the size of the following frames, which are not present with TX_DELETE. I already fixed that issue in my Python module, so it works for me. Kind Regards, Patrick