Quick look at code, seems like terrain weight parameters aren't considering MPI association or index.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-126880 in the post.
| 0 |
| Component | UE - Rendering Architecture - Materials |
|---|---|
| Affects Versions | 5.0 |
| Created | Sep 16, 2021 |
|---|---|
| Updated | Sep 22, 2022 |