"Couldn't use the uncompressedVideoType as the input media type of the writer" Error

[Rocky3c]

Good Evening All,

I am recieving this error message when trying to export an edited video file(imported as .mov) as a .mp4. 

Text Document of error:

The file appears to be unsupported or damaged (1)
     DSC_3265.MOV (Couldn't use the uncompressedVideoType as the input media type of the writer)

Saving as original does export the video, though without any of the edits.

I downgraded the version to solve the issue and it still did not work. Any recomendations to remedy the issue are appreciated. 

[CoreyT090821]

I have also been having nothing but problems with this as well in recent months. I have tried different codecs in the camera everything should be working properly and I can import and edit the files but the export always goes to this. The only solution I have been given by Adobe was to delete files for cloud space but even after clearing everything and having plenty of space still ran into the same issue. Before it was saying the files were broken or corrupted which I found out was an HEVC issue and after paying for windows HEVC software it still didn't fix it. I then changed the codec on the camera and can import and edit just fine, export is a continuing problem.I have been on with chat support multiple times for the same issue with no resolve even allowed a remote assist and still nothing.

[johnrellis]

@CoreyT090821, the best way to get a bug reported and acknowledged is to file a bug report in the Bugs section:

https://community.adobe.com/t5/lightroom-classic-bugs/how-do-i-write-a-bug-report/idi-p/12386373

For this problem, it will be essential to provide a sample video. If you can get a sample less than 47 MB (e.g. 1 second long), you can attach it directly to the bug report. Otherwise, upload the sample video to Dropbox, Google Drive, or similar and include the sharing link.