Render problem. Transfering materials between projects.

Dear Sirs, good day!

We have a very strange situation here. We’re working on a project with my friend via p4v, and we were going fine until this moment.
Very strange and unknown problem is with BSP => Staticmesh converting, using substance materials.
SO!
My frient made bsps, then inserted them into world, and then i was making SM from them. It was always fine and done well (before), but some time ago i’ve found that we have ABSOLUTELY different materials on them.
We tried everything, sync, copying JUST EVERYTHING, even updating engine. This is what i’m having on my computer

And this is what my friend sees!

What’s that all about??? How can i save my monthly work? We need to make videos etc, and this month is very costly for us…

Next problem is connected with LOD0 on my computer. It’s impossible to make a move, every single additional option or change kills all materials except the first one that covers all mesh. 8,( What’s that about!?