No light through translucent objects

In editor only selected window transmits light (“Lit” mode).
“Lighting only” mode picture shows desired result.
In game there is no indoor light at all.
Appeared in 4.9.

Hey Strangeman,

I made a small test with some cubes. I made a translucent material with .5 opacity and built lighting on production settings.

I do not have anything selected and I do not see this issue.

If you would link your DxDiag along with a screenshot of your material I will see if there are any discrepancies in what we both created.

Here you are. There was no such problems in 4.7 and 4.8.

Found palliative solution: disable “Cast Shadows” on translucent materials.
Thanks **** (and ****) from my previous post: