5820K Windows10 GTX 970
Latest local build from master - date 16/03/2018
Short description of error
Render throws exception in debug build with very simple mesh - with adaptive subdivision
Problem appears to be in mesh_subdivsion.cpp
Line 193 int num_local_points = patch_table->GetNumLocalPoints();
which means length of verts array is not increased and so
Line 207 patch_table->ComputeLocalPointValues(&verts, &verts[num_refiner_verts]);
fails because num_refiner_verts is greater than length of array (last element is num_refiner_verts-1)
Hope that helps.
Exact steps for others to reproduce the error
Run debug version.
Load attached scene
Hit F12 to render