Interpolate to movement 4.8 - Lift creation issue


I’ve successfully used the new 4.8 interpolate to component on a static mesh actor to create a moving lift, which rises up and down. The mesh is just a flat plane on 1x1x0.1 dimensions with a texture on it.

However, when my player gets on the lift, it stops moving, and starts to slowly lower under its weight.

Has anyone got any suggestions how I can fix this?