The resolution of my video exports is lower than expected

In PlayBase, the export quality of a playlist depends on the lowest-quality clip within it. For example, if some of your selected clips have resolution 1920x1080 and others have resolution 1280x720, all of those clips will be exported to a video with resolution 1280x720. When being careful to export simultaneously only clips of the same quality, the output quality should generally improve as well.