Others and I are having problems with our local offline USB synchronizing our calendars in the recent macOS versions (started in Ventura) and iP* devices as shown in these links: https://talk.tidbits.com/t/my-mac-apple-calendar-went-berserk-i-need-help/23878/39 https://discussions.apple.com/thread/254982807 https://discussions.apple.com/thread/254549186 https://discussions.apple.com/thread/254463571 https://discussions.apple.com/thread/254650642 https://discussions.apple.com/thread/254890299 https://discussions.apple.com/thread/254876661 etc. We reported this to Apple too with our bug reports, but nothing. We don't want to use clouds too. Thank you for reading and hopefully answering.

With USB cable connection (no cloud) to import from updated iPhones (11 Pro Max, 12 mini, and 13 with their updated iOSes) into updated macOSes (Ventura v13.x, Big Sur v10.11.x, and Mojave v10.14.x)'s Photos app, I noticed imports show already imported medias and missing brand new medias. Others and I noticed this problem in our multiple macOSes with iPhones: https://discussions.apple.com/thread/255565285 and https://talk.tidbits.com/t/does-anyone-have-problems-importing-iphones-medias-into-macos-photos-app/27406/. Thank you for reading and hopefully answering soon. :)