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[Closed] Great FPS in editor window, but horrible with PiE.

I have a project I've been working on for several weeks: A large open world terrain with quite a bit of flora, made with modifications to the third-person template. It was working fine until last night. Now whenever I hit the Play or Simulate button my FPS drops to about one frame every 3 seconds. Even the ambient audio stutters along with the visuals. Any ideas what would suddenly cause this? I can't think of any recent changes I've made that would cause such a drastic drop. Other projects still run fine, and this project was playing at about 35 fps before I closed it last night.

I have good hardware, i7-4790k, 32GB RAM, GTX 980. Can load and run the full kite demo with no problems. It's just something about the terrain in this project which is causing an issue, but for my life I can't figure out what it is.

Product Version: UE 4.8
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asked Aug 25 '15 at 07:16 PM in Using UE4

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The question has been closed Oct 02 '15 at 09:27 PM by Adam Davis for the following reason:

Duplicate Question

1 answer: sort voted first

Duplicate posts are quite annoying.

On you other post you have an a solution. https://answers.unrealengine.com/questions/290718/great-fps-in-editor-window-but-horrible-with-pie.html

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answered Oct 02 '15 at 08:24 PM

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