Solutions
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LB777's post in Switzerland pro X with P3D2.5 airport night lights was marked as the answerInside the CHPROX\CHPROX_scen\scenery folder try removing all the BGL files with "PointLights" and "RestPointLights". Put them somewhere else just to have them as backup.
As far as I know these are all the files that make 3D night lighting for the scenery, but it doesn't seem to work in P3D... so I tried removing them and it fixed the issue