Encoder Error - When doing a render and replace media

[FlyingFourFun]

I am getting this error when attempting to do a render and replace media;

Source clip is Iphone HLG2100, H265

Effects applied to clip is Mocha Pro, stabilize Module is enabled for rendering.

Output target was ProRes HQ

The error message pops up in lower right of Premier, after a min or so and the render replace dialog remains frozen on "analyzing project".  The dialog remains active, there is no freeze, and I am able to Cancel the process. 

I have tried render and replace on a clip without the MochaPro Stabilize, and no effects, it completed with no error.  Attempting now to duplciate the error consistently to see what happens.

[FlyingFourFun]

I have a ran a few other tests, continued with the Mocha stabilzie and the process as completed without error a few times.  This error might not be specific to render and replace, as I cant get it to specificaly on demand happen, and there might have been soemthign else happening to cause that error.   Not sure how to further troubleshoot this.  will try a few more things and see what happens.

If it matters, the test clip I have is about 12 min long.