Weird UV Problem before build and after build

As see picture, there is weird UV issue after build in 4.0. what cause this issue and how to fix. Thanks in advance.

Have you checked your texture import settings?

Just use default texture settings.Do you mean the default texture settings is using minimap which is cause this issue ?

It could be due to the compression settings. Did you leave it to auto compressed? Also, what platform are you building on? The compression settings might force your image to a higher resolution which causes your texture to stretch (which is the case that I am seeing in your image).

Also, is your clamp settings set to repeat? Clamp also causes your image to stretch if you change the tiling values on the material.

Yes, using auto compressed but repteat settings. How to avoid this issue in texture settings ? And the project is in Windows Platform.

Is your texture PoT? If it’s not, try going to advanced settings and setting Non Power of 2 to None. If that doesn’t fix it, it might have something to do with the UV import for your mesh (if you are using an imported mesh for the road). If it’s the mesh, I’m afraid I don’t have the experience nor expertise to help you with that.

Thanks. As the mesh has one mesh collider component. remove the collider got fixed this issue.