The idl of the method is:

oneway void startMonitoring();

The startMonitoring() implementation contains an error.

If I call the method using the object explorer interface, the container output shows:

omniORB: (6) 2020-12-14 18:17:27.662230: Caught an unexpected Python exception during up-call

without the Traceback. (SEE "acscommandcenter.png" attachment)

I instead I log the container's output on file, and I call the method from a python script, I can see the traceback (SEE "containerlogsonfile.png" attachment).