Keywords in Photos: am I alone?
I am a heavy Photos user with 20,000 photos (non-professional) in my library. I've spent hundreds of hours editing, re-dating and keywording my pictures in Photos (and iPhotos before that). I had a very rough transition from iPhotos to Photos, randomly lost some pictures, lost random meta data. I'm running the current version of iOS and have been to the Apple store dozens of times trying to address all the inconsistencies in my Photos library. They have tried everything short of the nuclear option of wiping Photos and re-installing it new, not from a back-up, which is likely corrupted. This option is not feasible for me given I would lose all the work I've given to this labor of love. At this point, I'm just hoping someone smarter at Apple will address these glitches so I can save my sanity.
I'm coping with the loss of functionality in Photos as I wait patiently for features to be restored (batch changing titles, bulk date changing to one date, etc.) In the meantime, keywords are giving me fits. Keywords that I delete do not disappear and show up in searches. I have four keywords called "4 star" that all have different photos in them. I can sometimes manually put the various "4 star" batches of keywords into one "4 star" keyword, but a new keyword is frequently re-created. In other words, it's a manual fix sometimes, but only temporary. As per the issue of keywords not really deleting, the fact that the keywords duplicate like tribbles makes the problem even worse. I have at least a half dozen duplicate keywords at any given time. The replicating keyword snag does seem to be most prevalent with the "star" keywords that were formerly just Stars, but there are plenty of other duplicated keywords.
My question is: does anyone else have any of these issues, and if so, have you figured out any work-arounds? I am beyond frustrated. I've gone full-Apple and full-Photos for this project and I can't abandon it now. Any other chronic issues with Photos?
P.S. I've also submitted this to Apple Feedback but am not holding my breath.
iMac, iOS 9.1