Transparency feature in old version of shotcut not working anymore

[MusicalBox]

Hi @shiolily
Maybe this tutorial will help you:

Tutorial: How to export a video with transparency

[Shotcut Tutorial: Export videos with transparency] In this video I explain how you can export a video that will keep it’s transparent parts when you use it in other projects. You’ll also learn how to remove the green background from a video and export it with transparency. One of the advantages of exporting with transparency in .mov format is that it avoids the possible problems caused by using a MLT of size X in a project of size Y Another reason someone might want to export as …