This conversation has been merged. Please reference the main conversation: Lightroom: iPhone video Capture Time is shifted upon Import
I have figured out another workaround, which work perfectly so far after repeatedly importing. It is however, slightly “destructive” which is unfortunate, and I am working on some alternatives.
The workaround fix is to simply run the following ExifTool command on all .MOV files that came out of myiPhone, before importing into LR:
exiftool -overwrite_original "-quicktime:createdate<quicktime:creationdate" "-quicktime:modifydate<quicktime:creationdate” FILE/DIR
I really don’t know what on earth is going on in the LR code, but if I could fix the issue so quickly and simply, it’s quite beyond me why this is so hard for LR to resolve. Just use the quicktime:creationdate tag in .MOV files from iPhones. Maybe there is more to it, but the randomness of the defect is very worrying, and this works perfectly so far.
I notice that I am not the only one experiencing this defect - here is another:
I am using LR 6.10.1 on Mac Sierra 10.12.5 and my iPhone is running 10.3.2.
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