Lighting problems on spline meshes

This cliff mesh should be seamless, but after rebuilding lighting I get those really hard differences in brightness where a new mesh begins:

Any idea what I’m doing wrong? Should I pick different shadow settings in the blueprint for the mesh? (The mesh is static btw)

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double click on the mesh in the details panel, is the material applied there? If you only applied the material via editor it can cause the effect you have.

Thanks. I just tried to apply your suggestion, then I noticed the problem seem to have been fixed by the new engine version.

BTW this problem seems to have gone by itself with the latest engine update.