MP4 videos in a widget not playing after packing the game.

I already added a folder called “Movies” in Content. Content/Movies and added the videos there. The videos change from MP4 to .Uasset. Is that correct? Any ideas?

that sounds correct.

do they play on editor during PIE?

what codecs do you use?

is it windows/inux/mac?

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So… UE5 has this weird condition, that you must add the .MP4 files to the root folder of your project, open Unreal and import them, flag them to the Engine, so the engine creates 1 .uasset file for each .MP4 contained in the Content/Movies folder. No extra changes.

i haven’t had that issue.
i just drop them on the Content/Movies folder
i think you might need to also set in the packaging settings to include that folder can’t remember.
the movie uasset can be created via right click on the content browser.