Gpu lightmass all new lights and some existing ones do not contribute to the baked lighting

The whole engine is trash. Mesh streaming isn’t going to save you the time you spent tinkering with the engine. And it’s also avaliable on many different engines as a different feature. It’s hardly exclusive or innovative for that matter.
Its also overpromising and compromising when you consider the fact that just because of it you cannot render some things accurately, you have no LODs, and your scene can still reach an excessive amount of tris that will therfore cripple rendering further.

Seems to me like you are the underinformed one - but at least you seem to persist, which is more than the avarage person does…
I gave you my 2c as an industry professional. Do what you will with it. Doesn’t change anything for me…