4.1. I had a backup power supply failure and a project was open. I re-started the computer and the project loaded, but as a 'Copy Of My Project' with a disclaimer. Still, it looked fine, rendered fine, and saved fine.
However, when I closed Premiere and then re-loaded the project later, it will not load. The project gets to 100% and then just sits there forever.
Any ideas on how/if the the thing can be recovered properly?
Try creating a new project and importing the busted project into it. Using your preferred import method, just navigate to the .prproj file and select it for import. If all goes well, the sequences and all relevant media will come into the new project and be stored in a bin with the same name as the project. Open it up and find your sequences there.
Alternatively, check out the Auto-Save folder in the root of your project folder. As long as you have Auto-save enabled, you should find a series of backup/archive projects in it. While you may lose a bit of work depending on the time of the last save, you should at least be able to salvage the project. Just check the Date Modified column for the last auto-saved file.