It would be fixed if somebody warn me about it until now! It's an overlook on creation method after changing some lines. Fixed for R4.

I have seen it reported at least 3 or 4 times on facebook or discord since 1 month. I don't think many people use the forum a lot.
Anyway, glad you know it now ...

bump

Hi, when I create a new spotlight, it's meant to start with an rgb spectrum in the texture, and a scattering medium in the light medium.
Mine is blank, apart from one time, now I just have to copy that between scenes.

Am I missing something?
Thanks