Gorge,

I cannot seem to figure out how to render video over 60FPS.
...
int FFMPEG:open_encoder(const char*, const char*):
check_frame_rate failed /path/to/outfile.mp4
---------
...
Am I doing something wrong?

As Andrew already stated, "no you are not doing anything wrong" -- it is a missing format and Andrew has fixed it

and it has been checked into GIT.

We have created a new version for you to use -- it is the same as the May 31, 2021 release except for the additions.

You can download it here:

https://cinelerra-gg.org/download/testing/cin_for_newer_distros.AppImage

and it is a single file that you will have to make executable via a window command of: chmod +x cin_for_newer_distros.AppImage

and then in a window, just keyin: {name of directory you put the file in}/cin_for_newer_distros.AppImage

The benefit of this version is that unlike the package or tar file, it now has the "Alt/h" hotkey to get help when put the mouse somewhere.

If you have problems using this, just reply. Thanks to Andrew for the patch, Phyllis