I had converted a whole bunch of videos (350+) from MP4 to AVI (Up to 720p High Quality) to save some space. The space savings were great but unfortunately I noticed that any videos that were in portrait mode were converted to landscape and ended up all distorted. Sadly I have already deleted the originals before I realised.
Greetings AndrewP37, To proceed with an investigation, kindly collect a technical report as per this article: https://kb.parallels.com/en/124107 If it's possible, try uploading the video to any file exchange service. While the report is gathering, you can paste the link in the issue description so we can test it locally. Then copy 9-digit ID of the report and provide it in a reply message. Looking forward to hearing from you.