Yes, I did use that File Transfer app. Weird since I normally copy over directly using the Image Capture app in Mac OS X.
That large file needed to be transferred with that app so the Theta Desktop app will accept it for stitching.
So I have the latest firmware: 1.20.1
Latest Theta Desktop App: 3.2.2
and using the Theta Movie Converter 2.0
I stitched the video clips with the desktop app and then tried to convert with Movie Converter 2.0
Files that are 4 gigs in size convert correctly with no issues.
The files that are 5.6 gigs in size or so will not be accepted in Movie Converter 2.0 (Unsupported File)
If I downscale to video file to 1080, then the Movie Converter will work as the size is much smaller.
I’m running Mac 10.13.3 High Sierra
on Mac Pro 5,1.
The firmware update is glorious though. My wife video’d kids school concert and the sound of built in mics is superb. (This is 13 minute file where I had to extract audio from the 1080 version and matched with the original 4K video.)