If I'm not mistaken, the last 2 digit are the CAN ID node and setting it to FF means "broadcast to everyone". So, maybe the real CAN node ID of your device wasn't 19.
In your CanKing output picture in your post #1, is the other CAN frame what you are receiving from the device? In this case, I would say that your device CAN node ID is EC (217060588 converts to 0x0CF014EC).
Anyway, it's a good thing you have it working.
Sam