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Building Light stuck at 75%

I have deleted saved and intermediate and the Unreal Engine local app data.

I have opened swarm agent and cleaned cache and validated.

No matter what, building light will reach 75% and will never progress.

Product Version: UE 4.9
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asked Oct 07 '15 at 10:33 AM in Bug Reports

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avatar image Enlo Oct 07 '15 at 10:57 AM

I had the same issue (but at 66%), but it somehow did go away. I had invalid blueprints on some maps, which I fixed. Maybe that was it.

avatar image Logan Bailey ♦♦ STAFF Oct 07 '15 at 02:46 PM

Hello Dannyk90,

From what you described it sounds like your lightmass is building while your lighting build gets stuck and doesn't complete it's build.

I have a little information I would like to receive from you in order to narrow down what could be causing this.

If you would send me a link of your DxDiag, I will see if there is an issue that is native to your computer. Does this happen in 4.8? Is this in a project that was copied from 4.8 to 4.9?



avatar image Dannyk90 Oct 07 '15 at 03:31 PM

It has been working before, all I have done is add a new level with a light.

This is a 4.9 only project.

link text

dxdiag.txt (82.6 kB)
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This appears to be another issue where the Lightmass is running but the build gets stuck at different percentages.

The bug number currently associated with this bug is UE-20782.

Thank you very much for reporting this issue.

I will keep you p to date with it's progress.


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answered Oct 07 '15 at 03:36 PM

avatar image Dannyk90 Oct 07 '15 at 03:38 PM

thank you .

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