Here are my Sequence settings. I creatd the Sequence based off of the clip (dragging it to the "New" button and creating a Sequence). I then compared it to the settings @Averdahl suggested before.
By @joe_7305
No, read once again. I never suggested or wrote that you should drag the clip to the New Item icon. So read once again and do what i wrote. Not sure that it will solve the issue since Pr should be ok doing it the way you do, but for testing purposes it can show that it fix the issue, or not fix the issue.
You can of course drag the clip to the New Item button, but make sure to change the settings if you do.
And there is no need to convert the clip to ProRes, before import or upon export, since Premiere Pro handles the file without issues here.
Have you tried in a newer version of Premiere Pro, such as the latest 24.6.1 Build 2 or even the Beta version? It´s worth to at least try it since your version may have a bug when going from 1440x1080 to 1920x1080. You can install 24.6.1 or the beta (25) while keep the version you have now intact.
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