Hello, I'm back with good news, we've fixed the video export. 🙂
Open the app in order to update, close it, and you should be able to open it again and have the latest version which is v2023.1.2
You can check the version either by pressing F1, or in the top left of the application click on the Menu button and select About.
Thank you for reporting this issue, we will continue to improve the app.
Have an awesome day!