Steps to Reproduce
1. Create a level
2. Add a landscape + deform it with sculpt mode in the landscape edit layer “Layer”
3. Create a new landscape edit layer
4. Go back to selection mode
5. Create a spline blueprint so the landscape can deform to the splines placement (example nodes attached)
6. Add the spline to the level and add some points + move it up.
7. Position the spline over a deformation made from sculpt mode.
8. Set the LandscapeEditLayerName to the new edit layer you created (not the same as the sculpted layer)
9. Set the boolean condition to true and watch the landscape deform.