Apple’s Photo app for Mac has a problem with importing/exporting video files. More specifically, imported videos may have an incorrect date (timestamp) if those videos were previously exported from another Photos library. Instead of showing the date and time the video was recorded, Photos shows the import date/time. As a result, the imported videos are placed incorrectly on your timeline.
The problem is not one of the date being constantly wrong, but the date headings constantly varying as you open, close, take action, even scroll within the interface. As noted in the original description,
The headings of the media library should be expected to be
- Last Import
- Most recently imported files
- Next most recently imported files
-etc. Ending in oldest files at the bottom
The dates being displayed are, quite often not in date order and most recent import is often not at the top. As one scrolls down and then back up the dates have changed for each section. Closing the program and re-opening may right the situation for a few seconds
To view the location of your Photos library in the Finder, click Show in Finder. To use the currently open library as your System Photo Library (which allows you to use it with iCloud Photos), click Use as System Photo Library. For information about how to switch libraries, see System Photo Library overview and Create Additional Photo Libraries.
LaunchServices on macOS now respects the selected Xcode when launching Instruments, Simulator, and other developer tools embedded within Xcode. For example, when you double-click an Instruments trace in Finder, the version of Instruments for the selected Xcode launches. Change which Xcode is used with xcode-select from the command line. (6757601)