photoshop rendering problem

Hi there, 

Thanks for reaching out.

Which version of  Photoshop and Windows are you using? 

How are you exporting the video? What is the file format? Since when are you seeing this issue? Do you get any error messages?

Restart your Adobe Photoshop and see whether it helps. If the issue persists, check out the other solutions.

Try to reset your Photoshop preferences. 
You may try to reset Photoshop preferences back to defaults and check if that helps.

Here's the article for the steps: https://adobe.ly/3ceal5t 

Also, back up the existing Photoshop preferences if you have any custom brushes, actions, and workspace: https://adobe.ly/2vNz6FG 

Let us know if it helps.

Thanks,

Ranjisha