[Jono Grant]

Thanks! I tried that and the video does play in vegas now.
It won’t let me keep the dimensions though, it seems to force me top use 1920×1080
wants me to change it to an m4v or mkv as well

Is there a way to retain the size and file type?
Cheers
Jono

[Jono Grant]

Thanks!
Here’s a screen shot of the media info. (The specs I previously posted are just what Vegas displayed when I click on the video file)
This is just a video from an iPhone 8 plus set to 4K 30 fps. Media info shows 30 frames but max fr at 31.579 which is what vegas reported.

[Jono Grant]

Here are the Vegas settings:

[Jono Grant]

Sorry!
The specs are:
3840x2160x24, 31.579 fps progressive H.264 44.1kHz 32 Bit float Mono AAC

When it asked if I wanted to match the project settings, I said yes.
Thanks
Jono

[Jono Grant]

Yes!!!
Thank you so much!

Jono