The wireframe for "r.ShowPrecomputedVisibilityCells 1" is upside down as stated in the UDN.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-21303 in the post.
| 0 |
| Component | UE - Platform - Mobile |
|---|---|
| Affects Versions | 4.9 |
| Target Fix | 4.10 |
| Created | Sep 21, 2015 |
|---|---|
| Resolved | Sep 21, 2015 |
| Updated | Apr 27, 2018 |