Before I send you any files, I'll explain my workflow when working at speed.
In all previous versions and this latest of PM I work directly off the card, selecting and captioning, loading GPS position, of the Canon Raw file, click the edit in button, which is set for PSCS6, do any gradient selection, brush selection, spotting etc... In PSCS6, then save as JPEG. Been doing this way for years with no problem whatsoever. Then upgrade to latest version of PM and it doesn't work? That to me would point at PM being the problem as it worked with PSCS6 in the previous version.
I don't ingest because when you have 12GB or more on the card, it simply takes too long even when working with a FireWire 800 card reader. When you're working pitchside at matches you have to edit and send asap. Ingesting prohibits that because of the time it takes to ingest the whole card.
Luckily I still have the images still on the card from the weekend. I've just done my normal workflow on an image and the only info in the IPTC in the saved JPEG is the standard copyright info that I've set the camera to place in all images. This latest version of PM isn't placing the Stationary pad and my captions etc... In to the sidecar file when I click to edit in PSCS6. All previous versions have.