Ok I'm open to suggestions on how to track down this doozy. I have an unknown number of machines that actually FAILED to deploy a policy-supported push, but they reported Action Completed Successfully (Return Code 0) to the core - but it's in the neighborhood of 1500-2000 machines.
I can confirm this by remoting to the PC and visually confirming that the software has not been installed.
Now for the caveats.
When I started this task, we were running LDMS 9 SP1. Last week we upgraded to SP2 (core/consoles and clients).
Not all machines are reporting 0, and not all return code 0 machines are failing (in fact, most did deploy successfully).
Any idea where I should start looking?