This happens randomly and usually comes in 2s. I have nothing running in the background and nothing I do in the editor seems to cause it. Any ideas?
If it’s as regular as that I’m betting it’s a particle or blueprint-spawning-something-insane related issue. Does it cause a noticeable FPS hit?
The best way to tackle it is with the stats tools/profiler. You can get specific details on which items are causing it. There’s not a lot of documentation on it at the moment (hopefully coming soon I imagine) so I can’t help you with using it, but Unreal did a presentation on how they identify things like this and you can watch it on YouTube here: UE4 Rivalry Demo: How to Scale Down & Not Get Caught | Live Training | Unreal Engine - YouTube