StackOverflowException on large spline network

[Trainzland]

Upon further investigation it seems that the issue is caused by spline connections, as creating the spline network without any connections lets me build the scene as well.

Hi Christian,
how many connection gameobjects you have in the _CurvyGlobal_ folder?
and do you animate any of the spline points ?

It's interesting to know, because I have also heavy issues because of the permanently enabled animation feature all splines.

Thanks