Problem with the alpha of my moon beams asset

i toke the god ray assets on this scene:

And in the viewer all is good

but when i launch the game i lost the alpha of the texture and the result is like in this image

I don’t understand why, plz could you help me?

Hello,

We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form

Thanks