Hi I just realized that my project had the wrong settings: instead 4K UHD I had started with 4K DCI, so it's a bit wider than I wanted.
So I decided to change the project resolution to 4K UHD and I got some "size & alignment problems", maybe especially where I used transform. So far so good and expected... I saved this version with a new file name and corrected all such errors. Then I started rendering this new version. And I got many such errors again. Basically, while within kdenlive itself, everything is fine, when rendered I get the errors. Unfortunately this is also true for the old versions, so before I changed the project resolution. 1. Why is this the case? I didn't expect that and don't understand it. 2. Is there a working "way back"? I don't like the idea to completely start from scratch with this video... Thank you. Best regards, Bernd