Cannot restore live photo back to camera roll
I've been in touch with the Photosync support, and got it to work.


When you download the images from the phone, keep the original file names - can be configured in the settings.
Don't rename stuff on your machine, either.
Don't use the browser for uploading the photos - use the companion app.

(That's where I went wrong. I used the browser for restoring; there
isn't a hint anywhere that live photos will be messed up that way.)


I restored from a PC running Windows 7. Haven't tried it from a Mac yet.