Hey all. Recently i've noticed odd fps drops occurring in both the editor and build versions of my project. They happen maybe once every 5 mins or so and last up to about 10 seconds. During which the game becomes completely unplayable. My scene is pretty simple and does not change at all during play. I am using some post-processing affects on multiple cameras. GPU Profile Capture before slowdown: GPU Profile Capture during slowdown: It looks like there's a proportional increase in the time taken for everything to be handled by the GPU and doesn't look like there's a single obvious culprit. I've tried: Upgrading Unity from 19.1.3 -> 19.3.1. Enabling/Disabling Vsync. Updating my GPU Drivers. Enabling/Disabling post-processing in the scene. (possibly reduces frequency but doesn't fix). Any pointers would be hugely appreciated. - been stuck on this for a couple of days... Thanks.