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Issues with Light build

Hey guys

Wondering if you could offer me some help. I just got a new PC and installed Unreal Engine 4.20.3, I transferred a project from my old PC over to my new one and I've encountered lots of errors with opening levels, light building, corrupt geometry and changing light map resolution channels.

So after troubleshooting I decided to create a fresh project and re-import all of my geometry (as migrating doesn't work either). Initially I found that I can't open a project without it crashing, but after re-installing my graphics drivers, epic games launcher and UE4 4.20.3, I've been able to open projects but now get issues with light builds (see below):

link text link text alt text

I have also attached my two previous crash reports, wondering if they're the same issue or if there's something similar going on? Someone on the UE4 Forums suggested that it might be my graphics drivers which I re-installed. This is pretty urgent so thanks very much in advance to anyone who can offer some help :)

Product Version: UE 4.20
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asked Oct 18 '18 at 02:41 PM in Rendering

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Steven Bracki
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avatar image Steven Bracki Oct 18 '18 at 05:00 PM

I just tried to load a map up and I got this crash log?

Cheers

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crash-03.log (32.8 kB)
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1 answer: sort voted first

Hi!

Have you tried to clear cache in swarm agent?

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answered Oct 18 '18 at 02:44 PM

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Makigirl
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avatar image Steven Bracki Oct 18 '18 at 02:45 PM

Hey, thanks for the quick response. Yeah I tried clearing cache and validating swarm.

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