They are effectively 2D and spline points should be constrained as such. We should snap them to the XZ plane in component to avoid issues and make it nicer for users.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-9061 in the post.
| 0 |
| Component | UE - Gameplay - Paper2D |
|---|---|
| Affects Versions | 4.6.1, 4.7, 4.8 |
| Target Fix | 4.8 |
| Fix Commit | 2510273 |
|---|
| Created | Feb 4, 2015 |
|---|---|
| Resolved | Apr 13, 2015 |
| Updated | Apr 27, 2018 |