How do I add a sun disk to my Sky Sphere? (like BP_Sky_Sphere)

I’m using translation so it might be a typo.
If I wasn’t working for mobile, I would add atmospheric fog and enlarge my sky sphere until the sun disk appeared but I can’t show my sun disk because atmospheric fog and sky atmosphere are not supported on mobile.
I can’t add the sun disk as texture to my sky sphere material because I need to turn on the light shaft bloom.

If I create a sky sphere blueprint, sun disk and the light beam blooms appears .But same as BP_Sky_Sphere and not working for me.