I've added some video app previews for my app on App Store Connect and when I set the video poster frame, it never saves the image that I want, it always reverts back to the one that Apple defaults to initially. Does anyone know a work around?
UPDATE: I did get in contact with App Store Connect and they told me it's a recent bug that they're actively working on fixing. I'm going to touch base with them early next week.
I've found that you need to pause on the image that you want to make the poster screenshot for at least .5 seconds in your app preview. Then when you set it to the poster, wait 10 minutes for it to update.