Hi!
There seems to be a problem with time zone handling when putting G-Metrix on a video with many clips. For the first few clips everything is fine. The UTC time in my GPX track matches the UTC time when the clip was filmed. Then suddenly clips start to sync two hours early in the ride. Interestingly, I live in time zone UTC+2. If the clip was filmed at 08:00 local time, the GPX track says 06:00 UTC, but the video.xml file has synced to 04:00 UTC.
I'm considering building a small tool that will automatically fix up the video.xml files.
UPDATE:
I did build that tool. If anybody's interested, the code is here:
https://github.com/torhovland/virb-edit-clip-sync
Tor