canMatch to get whole CAN-FD message

I am having problems extracting values from a CAN-FD message. So far, we have been using the canMatch command to verify reception of certain messages (msgId).
Now with the new value command, we're hoping to get some values from the data, but are unable to do so. Data I'm looking to extract using the value command is offset by more than 8 bytes in the message, and the returned value is an error "extract mismatch".

Could it be that the canMatch command only extracts the first 8 bytes of data, regardless of -fd setting? Is there a workaround we could try to implement to get the rest of it? The message we are working with is often full 64 bytes long.

Thanks in advance for the assistance!