Ethan,
Nothing special about 130815_r0092_11_19 (it renders fine). That was a file I tested on to see if I could reproduce the issue on a single file.
I made a Test catalog. Added and removed Photos/Scans/130815 Seattle/130815_r0092_11_19.TIF a couple times. All good so far. But that also worked on the original catalog (see the edit in my previous post). So next I used Scan to Catalog on photos/scans. (I'm surprised metadata gathering slows to < 1 image per sec). Then I ran it a second time, and boom: duplicates again. I stopped the second update short. Then selected all the images and hit remove. boom: zombie images in the catalog.
Log again. But it will be very crowded again...
Thanks. Still hard to tell what's going on (the log is 15000 lines long). If it's not too much of a problem, could you:
1) Create a new Test catalog.
2) Uncheck any other catalogs that you have.
3) Quit PM Plus.
4) In the Photos/Scans folder, create a new folder, called "Hidden". Then select all of the other folders except "130815 Seattle" in the Photos/Scans folder and move them into the Hidden folder.
5) Start PM Plus.
6) Add the one Photos/Scans/130815 Seattle/130815_r0092_11_19.TIF file to the Test catalog. You can add it a few more times.
7) Use Scan to Catalog and add Photos/Scans to the Folders to Scan, add Photos/Scans/Hidden to the Folders to Exclude and do the scan.
8 ) Do the operations you discovered earlier such that you notice duplicates.
9) Generate the log and Quit PM Plus. Post the log here. If the Test catalog can be zipped up and posted as well, that would be a bonus. Just the catalog.pmdb file should be needed.
10) Move your folders in the Hidden folder back out to the Photos/Scans folder.
Thanks,
-Kirk