Just upgraded a MacBook to MC 29.0.37 and imported some photos (all good), but in this batch were also two video files (from the camera). Although the files have all information in their meta data, the date etc. is not read on import, the date field is completely empty (same for the related fields, like day, month, year).
The last import was done with MC 28 (don't know the exact version anymore), and everything worked fine back then (i.e. video files from the same camera that were previously imported, have the date etc.). I tried it several times, with different import settings, but no dice. Seems like some sort of regression.
Also, when I upgraded from MC 28, I imported the last library backup (which had thumbnails included), but although the library restore went fine, there were no (i.e. zero) thumbnails, I had to run the rebuild, which takes ages of course. Maybe I did something wrong? I was expecting to be able to carry the thumbnails from one major release to the next? Also, all my import settings were gone (some expressions to fill certain fields, like name and album). I had to basically reinvent the wheel, and this time, I'll be writing everything down (on paper, so it'll last). It would also be great, if these would carry over when switching to the next major release.
Thanks for looking into this!