I think this would be a result of confusion. It would not work if the wrong loop was chosen for the sensor.
Generally what you would see is the device opening, but then it wouldn’t be able to report closed properly. No subsequent reports would be possible.
To be sure it is programmed correctly be sure to follow the steps here.
The panel will not always default to the right loop. Generally this is only an issue with multi-function door sensors like the DW10, since most other sensors use Loop 1.