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UE4.8.1 Upgrade, CPU Overload!

I've just upgraded my project from 4.7.6 to 4.8.1 and when i open the project it loads with the splash screen and gets all the way up to 95% then it stops, all 6 cores in my cpu are at 100% load and the unreal engine process is still active and yet it won't load?

Product Version: UE 4.8
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asked Jul 01 '15 at 10:47 AM in Bug Reports

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Maybe the engine is compiling shaders? ShaderCompileWorker.exe check your process if there are ShaderCompileWorker.exe you have to wait.

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answered Jul 01 '15 at 01:48 PM

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avatar image AndrewM47 Jul 01 '15 at 02:48 PM

Yeah you're right! thanks.

avatar image Matt.Williams Jul 06 '15 at 08:32 PM

Hey AndrewM47,

If you have some rather complex shaders, it can take a while to compile them on first launch after upgrading engine versions. Did it ever finish compiling shaders or does it stay stuck at 95%?

-Matt W.

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