3D text broken after playmode

Hey guys I have got a strange issue and hoped someone could explain if I am doing something wrong or it is actually a bug.

The problem ist quite simple: I've got a 3DText GameObject. It looks as expected.

But everytime I enter play mode it does not only change to something like this:

It also stays like this in editor mode until I change something like style or text in the textMesh component. Anybody knows a solution?

Thanks in advance!

PS: Maybe its important that I scale the parents parent gameobject relative to the Cameras y-position.