Rendered Night Sky Sphere differs from the one seen in level

I have edited Sky Sphere in my level (I needed to get rid of that ugly whiteish horizon that would not go away even if I set all the colors to pitch black), but when I render it via Sequencer it looks different: no stars and yet there is that horizon glow despite it is not there in the instance in my level - what is wrong?

It’s hard to tell with such a small amount of information. Do you have fog in the scene? How did you edit the Sky Sphere; Did you change the mesh, did you change the material? Which Sky Sphere & Material are you using?

thank you for the answer, I already solved it combining several other answers on different topics: I basically edited stuff inside the blueprint itself and the material itself