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Lightbuild data causes crash after shader compile

Hey there,

We are using perforce for our project. Sometimes, after I get latest rev

1 - That has new material (that requires compling shaders) 2 - And doesnt have any changes to lightbuild data

Editor can open the map while compling shaders(I can use the map while its compling). But as soon as compling is finished, editor crash. We found that this is caused by lightbuild data. After I delete that, editor opens the map and complies shaders and editor wont crash.

Crash files

Product Version: UE 4.19
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asked Dec 10 '18 at 10:42 AM in Bug Reports

avatar image

Monster1234
20 5 7 8

avatar image Jeff A ♦♦ STAFF Dec 13 '18 at 09:17 PM

Hello,

We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://epicsupport.force.com/unrealengine/s/

Thanks

avatar image Monster1234 Dec 14 '18 at 06:25 AM

Thanks, I will report it there as well.

avatar image AnotherZach Dec 14 '18 at 06:14 AM

Consider deleting Saved, Intermediate, Binaries. (Make sure your C++ code can compile.) Compiled shaders are stored in a folder called DerivatedDataCache that you should clear out too. These actions should effectively remove all data that can be created by Unreal, and is effectively a nice reset.

avatar image Monster1234 Dec 14 '18 at 06:21 AM

My project is BP. I forgot to mention but I tried those as well.

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