Bug: 4WayBlend shader broken in latest internal builds #1640
Description
Describe the bug
Title. Any displacements making use of 4-way blend materials currently show up as pitch black surfaces.
Discussed internally during 31/01/2026 meeting here.
To Reproduce
- Mount CS:GO
map dz_blacksite
Issue Map
dz_blacksite and other maps making use of 4way
Expected Behavior
Blends should be appearing correctly
Operating System
No response