Camera with clear flags set to Depth can't reset screen resolution?

Hello there dear people!

I have a problem, and I apologise in advance if this is not a question related to scripting ( the fact is I think that it is possible to fix this with a script but maybe it is also possible without).

I am scratching my head some weeks now about this subject. I have 3 cameras in my scene. 2 cameras seem to work well and project everything I want to and they also resize correctly with the resolution of the screen (4:3, 3:2, 16:10, 16:9). The native full screen resolution of my game is set to 16:9 with an aspect ration of 1.77777. But when it comes to the camera with my shadows, this camera only functions correctly in the 16:9 ratio. When I change the resolution of the screen the shadow camera stays in the same resolution, thus in 16:9. So my question is: why does this happen? Is it normal for a camera that is set to Depth with Clear Flags, that the native resolution is not changable anymore? I hope someone can point me in the right direction. I thank you very much!!

Is that camera rendering to a rendertexture or a render target you made? Textures (including RenderTexture and render targets) are not dynamically sized, so you must manually resize them.

@GambitMSplitz Thanks a lot for helping! No, there is no Rendertexture or rendertarget of any sort.