I am doing a simple scene. Whenever I render, there seems to be a strange problem - the scene is mirroring in every direction. I have no idea where it comes from. If you disable the whole collection 1 in render the problem disappears. However, I disabled each individual object in this collection and the problem still persists. I have no idea what to do :(Blender file Let me add a rendered movie for You. https://www.youtube.com/watch?v=s-J7c0s8WPE&feature=youtu.be In the end You can see like a giant mirror wall which is not there in the scene.