Quicktime fails in .mov convertion

Hello, i realized i can't play some .mov files which didn't show any problems before upgrading to Catalina.

i find curious that neither After Effect Rendered comp, exported in .mov can't be played.

The message box says:

"The document "****" could not be opened. The file isn't compatible with Quicktime"

or

"The file contains some media that isn't compatible with Quicktime Player. Would you like to open the file anyway?"

Then if I open that file through the box, it doesn't get rendered.

With Total video converter lite i can play and export those video in HD .mov, in order to be valid for QuickTime player, but that process isn't quick :) Also 5kPlayer is working well for playback.

Once upon a time Quicktime was converting by itself the media.

Is there a quick fix for this issue? maybe new codecs?