Did you try setting the PAR to “1” instead? Though the white on the bottom sounds like the codec isn’t being read correctly and you might try a different codec just to be sure.
So, mocha the standalone runs on a very basic quicktime engine we are looking to upgrade. But it doesn’t like some codecs. Sometimes some versions of ProRes don’t play nice with the standalone.
No problem. One of the workaround is using mocha Pro as a plugin, it simply reads the footage out of the host software, which has already translated the codec for you. That is also a very fast workflow and ensures everything matches across the board. I have mostly stopped using the standalone on projects because of the ease of use of the plugin.