OK, I finally got down to the studio to try some things ...
Yes, the PA System PC is running SONAR, but that PC doesn't have my arsenal of Wave's Plug-ins, so the template is different. I usually create a new project on the DAW PC and drag/drop the files in, or copy/paste between two projects.
I just now figured out the root cause of my troubles and it's kind of embarrassing, so much so that I almost didn't post a follow up ... I literally had one of my many drives near full and SONAR just didn't deal with it gracefully; that's it. I checked and checked late last night, but I have many hard drives on this DAW, I was tired, and must have had my eyes crossed. After a full night's sleep it was blatantly obvious what was going on.
Thanks for your help everyone!