Reflection Plane (Mirror) in 5.6

Good day! I was happy to use reflection plane for mirrors (from Blacksmith or Adam Demo), it was fast and nice looking. But in version 5.6 all BROKEN!

It is now look like objects render through each other! What should I do with that? I don’t understand about shaders.

That screenshot is indeed a mess. Not very clear what I’m looking at. On first sight it seems that parts that are behind the mirror are also reflected, but some clearer screenshots would be nice.

Okay:

It’s not behind the mirror, it’s all object what reflected, but all rendering wrong

Well, these type of reflections usually rely on replacement shaders that reverse the culling and clip pixels behind the reflection plane. It seems to me that something is going wrong there.