3DText is rendered in front of rendertexture. (SOLVED)

Hi! I am using a orthographic camera to render a 3D gui on top of my game camera. In one of my Windows there is a rendertexture. There are also 3DTexts on the Screen (overlays for objects in the Scene) which are rendered in front of this rendertexture, despite the fact that these 3dTexts are located behind the texture (z-coordinate). I have added a screenshot for you to better understand my problem. ![alt text][1] [1]: /storage/temp/13957-unityanswers_3dtextoverlayproblem.png "WEB2", "STARBASE" and "AS002" should not be visible. This is only happening with Rendertextures. Any ideas? Thanks in advance! Basti