Howdy folks… First of all ty for helping. I’m new to UE and i’m kinda stuck. I done some research b4 asking here but i’m stuck. I made 2 channels. First for Texturing and 2nd for lightning. I attached both here as well as 1 which i made in 3ds max (which i’m using for light). While rendering i don’t get any errors and for template i’m using tesing one. Ty.
Hey Javca,
It seems you have your Lightmaps and UVs organized well, and your spacing is fine. After looking at all of your images, I think your problem lies with the resolution of the floor that is receiving the shadows.
Try changing the resolution of the floor mesh as well as checking the box that says, ‘Inset Shadow’ on your building mesh. This will give you a higher and more accurate shadow resolution.
Let me know if you need help locating these options or if you still are having problems with your shadows.
Cheers,
I wanted to complete whole floor so here it is. And again same problem i tried to bump up resolution to 256 and nothing changed… Here are some pictures. And i couldn’t find ‘Inset Shadow’ in mesh editor… Material is double sided and everything is fine, but the shadows are still problem. Light Source is default BP_Sky_Sphere with default settings… Ty
Something bugged couldn’t write here 
answer is below
Hello Javca,
You might try a resolution a bit larger if this is all one Static Mesh. Try either 512 or 1024.
Before changing the resolution however; try the ‘Cast Inset Shadow’ setting that I mentioned previously. I have posted some images as reference where to find it, and the change it can have on your shadows.
Cast Inset Shadow Off
Notice how some of the shadow is dithered.
Cast Inset Shadow On
Now notice how the shadow is full and looks cleaner.
The setting can be found in the ‘Lighting’ section in your Static Meshes ‘Details’ settings.
Hopefully this resolves your issue, but if you are still having problems, let me know and we can try some other approaches.
Cheers,
Fixed… Ty Andrew… Now with another problem -.-
If you have another issue, just post a new question and we will be happy to assist. 
Cheers,