AWS Elemental MediaPackage - Video output issues after updating CF stack

Greetings!

We are using AWS Elemental MediaPackage application using Cloud formation. We updated the existing stack to 5.2 using following formation template: https://docs.aws.amazon.com/solutions/latest/video-on-demand/deployment.html#update-stack

After the update, we are facing issues regarding the quality and dimensions of videos. Output video is portrait in center and not taking full space. Also it seems rotated though provided parameter is 'DEGREE_0' (we want it to be in original format the file was created). Previous version of stack wasn't using the Rotate environment variable.

Any help or direction to sort out this issue will be highly appreciated

Abdul Rehman