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Landscape - Material Paint Tool Crashes - 4.13.1

Hi, since 4.13.1 the Landscape Material Paint Tool leads to an Engine crash when I select it. I have checked this with different projects. It´s everywhere the same.

It would be very nice if you could fix this bug in the next update. :-)

Best regards, Andreas

Product Version: UE 4.13
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asked Oct 05 '16 at 08:58 AM in Bug Reports

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avatar image FatalMuffin Oct 05 '16 at 12:02 PM

I've been having this same crash since 4.13.1 aswell, regardless of what material I use or project I'm in, remaking landscape doesn't fix it.

avatar image Gareth Martin STAFF Oct 05 '16 at 02:53 PM

Are you guys on Mac? We've had some reports of issues with landscape on mac with this release.

What's the crash message/callstack?

avatar image Maxwell_77 Oct 05 '16 at 02:55 PM

No, PC (Windows 10 x64)

avatar image Maxwell_77 Oct 06 '16 at 06:52 AM

Hi Gareth, I sent you a private message with the link to crash report. :-)

Best regards, Andreas

avatar image Gareth Martin STAFF Oct 06 '16 at 01:58 PM


Are you using Light Propagation Volumes? It looks like it could be an incompatibility with that.

avatar image Maxwell_77 Oct 06 '16 at 02:10 PM

Yes, I activated Light Propagation Volumes in the Config File. But I really need this feature.For this reason it would be very helpful if you could fix this incompatibility if LPVs are responsible for this.

avatar image Gareth Martin STAFF Oct 06 '16 at 02:59 PM

We're tracking this as UE-36933.

avatar image tsnodgrass Oct 08 '16 at 12:51 AM

I am also receiving this fatal crash when trying to paint. However I have tried doing the fixes that others have stated here and I still get the crash (I've removed any landscape visibility node and changed the shader back to opaque, and I've disabled Light Propagation Volumes).

avatar image FatalMuffin Oct 08 '16 at 01:55 AM

Did you disable in the engine or make sure to use the config to set r.LightPropagationVolume = 0 and then restart?

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I aswell had light propagation volumes enabled. Disabling them via config with r.LightPropagationVolume = 0 seems to fix the crash.

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answered Oct 06 '16 at 03:05 PM

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avatar image Maxwell_77 Oct 06 '16 at 03:15 PM

Yes, it solves the problem with the painting tool. But if you need LPVs it's not a good solution. As you can see this problem has still a tracking number.

avatar image FatalMuffin Oct 06 '16 at 03:18 PM

Agreed. I simply am disabling LPVs in order to edit the landscape and then turning them back on when need be. But a fix would be sickness as well as dope

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