PDC working on audio track???

Hi All,
 
Sonar and MIDI just don't get along too well, do they? I have a rather larger project where I have recorded some MIDI tracks, then bounced them to audio tracks. At this point, I have all the MIDI tracks hidden and archived, so there are only audio tracks in the project. I want to add another MIDI track and play along, so I need to use PDC, but when I click it on, it affects one of the audio tracks, pushing it forward in time. I'm on the 2017.07 version of SPLAT, and fear moving to the newer version. BTW, the audio track that's getting offset by PDC is an audio track that is frozen....I'm confuzed!
 
Thanks!

From manual about PDC override:
"Delay compensation is enabled/disabled on all live input tracks in the project. All other tracks have normal delay compensation applied."
 
So is this live input on the same synth as the frozen, or something?
If it changes with PDC override - it seems so.
 
So check is echo/monitor is forgotten active somewhere it should not.

Tracks(s) containing plugins summing up to largest pdc - are not delayed by Sonar. Delay is within the track - but all other tracks with shorter sum of plugins delay - will be delayed up to line up with those with largest pdc.
 
T1 - zero delay
T2 - 50 samples
T3 - 100 samples
 
T1 is artificially delayed 100 samples, T2 50 samples and T3 not delayed at all - then all line up.
 
But turning on pdc override - would then release what Sonar do. But not all sure how Sonar does that, some daws bypass plugins with delay others mute stuff. It's possible some daws just skip doing own compensation - and let everything be jagged output regarding lining up. If it was ProTools up to v7 that you manually had to enter delay on each track.
 
Possibly why PT have this excellent feature in mixer as a module:

Thanks guys! I didn't realize that the override was for regular plugins vs instruments. And you would think it's logical that you can have the override per track rather than overall....