Detector Disconnected from 4100ES but Still Shows Normal Status

Hello,
I am currently using the 4100ES.
I measured 34V from a detector connected to the M5 IDNet card, so I removed DIP 46 detector.
I completely disconnected the wire as well.
34V is measured from the IDNet card, while other cards read between 28-29V.
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The jumper is set to Class B.
When I remove one, all connected detectors change to a “No Answer” status.
I confirmed this behavior with detectors connected to other IDNet cards.

However, even after removing the 46 detector on the M5, it still appears to be normal.
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In fact, the removed detector 46 is still shown as normal and is being updated with the Current Value and Average Value.

I am confused…