"OpenDroneID system not ready" error when trying to arm a PX4 aircraft

[rayw-dronesense]

We are trying to arm a commercial PX4 aircraft using the SDK but it keeps throwing an error "OpenDroneID system not ready". This doesn't occur on other aircrafts we've tested using the same logic.

system.action.arm()

Even after waiting 5 minutes for it to "be ready".

The manufacturer's custom version of QGroundControl is able to arm the aircraft no problem, just about immediately.

Seems like their QGC app could be sending some command to "get the system ready"?

How do we use MAVSDK-Java to achieve the same?