We noticed that his IDLA does not offer the DC-T6233HRXL as available for IDLA service.
I checked our IDLA and have the same issue. We have DC-D6233HRXL connected but it doesnt appear in the IDLA availability list.
 

A :
DC-T6233HRXL is VA Edge camera which support Line crossing, Loitering, Object detection.

IDLA does not support IDIS VA Edge camera.
If you want to use that camera o IDLA service,
It needs to change DC-T6233HRXL to DC-T3233HRXL.

it can be changed by firmware upgrade.