Hello. I am new to Unity so I'm unfamiliar with a lot here. I have never had this issue before, but when I load the editor up, my scene looks normal. See below. However, if I wait about 1 minute or so, without touching a single thing, my scene will switch to this. As you can see, the depth in the trees is gone, the tractor is almost completely dark as well as the ghoul character in the middle. The shadows seem to just disappear. I also cannot change my directional light, which is lighting the scene, at all when this occurs. Another example here with the trees: Dark, can barely see through. Foggy. This is normal and how I want it. And here is afterward: Obviously doesn't look good and lacks shadows. Doing a simple restart of my scene does fix it, but only for a minute until it reverts back. This also affects how it looks while testing it in the game view. I have been working with this scene for weeks now and have only had this issue yesterday. I've barely made any changes to it too. Does anybody recognize this issue? If so, please help me! Thank you. EDIT: Also - this is Unity 2017.4.0f1 and I cannot update because this is the version that my game design course is using.