Strange skylight effect. HELP

[pedrotravels]

If anyone is seeing this post with the same problem on the GPU Lightmass the solution is very simple. This is what I was told by another member:

When installing the GPU Lightmass in your Unreal Engine, you get 2 new entries in your BaseLightmass.ini. You can find this file in C:\Program Files\Epic Games\UE_4.25\Engine\Config. At the bottom in this *.ini file you will find “[DevOptions.GPULightmass]”. There are now the options **NumPrimaryGISamples **and NumSecondaryGISamples. Chosse higher values for both and always choose numbers which are the power of 2, like 32, 64, 128 etc. Those values will have a huge impact on build time, so first try lower values (32/16 standard, try 64/32 and look at your build level, than choose 128/64 and so on until you like the result).

This will fix all the noise in your scene.
Thank you L1z4rD89 and presto423 for the help