@jwatte I have now tried all the collision setups, but yes “Use Complex Collision As Simple” was my default setup. But changing it did not change anything.
@MostHost_LA @ZacD I tried with UCX_ and UBX_ (according to the docs) and it got imported correctly in each case:
And as long as it is used as a static mesh it works perfect. As soon as it gets used with a spline the bug appears under specific curcuimstances.
SplineTest_2.blend (983.9 KB)
It really looks like that it has something todo with being close to another surface with collision. I made now additional tests where i place static meshes with collision close to spline mesh, as soon as it gets close to the spline, the collision does not work for that small part anymore:
Still working:
Stops working:
And it only stops working for specific part that is above the object, the rest of the spline is perfectly working.