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Editor Crash when trying to edit Foliage

Hello,

First let me describe the issue. For our current project we are using a tiled landscape via Landscape Streaming proxies. When loading in one of the landscape tiles I crash when trying to edit foliage.

More specifically the crash happens at the very moment I hover over the editor main viewport after entering foliage mode. As long as I stay off the main viewport with the cursor everything is fine, I can switch between foliage and other modes as I like. It literally crashes the very moment the cursor touches the viewport border as you can see in the video below

See a video of the crash happening here: https://youtu.be/j_cF-74LWuU

Crash Window text here: https://pastebin.com/F7Ns2TgD

Dump file here: https://drive.google.com/open?id=0By4W9RaXs_a0aVY4NFBRcG92bzQ

Thanks.

Product Version: UE 4.15
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asked Apr 13 '17 at 07:38 PM in Bug Reports

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Tomble38
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1 answer: sort voted first

I was able to resolve this by adding a UPrimitiveComponent* PrimComp nullptr check before the CanPaint in FoliageEdMode.cpp

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answered Apr 13 '17 at 07:46 PM

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Pewbot
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avatar image Pewbot Apr 13 '17 at 08:02 PM
avatar image JackP STAFF Apr 17 '17 at 05:59 AM

Thanks, I've included this into 4.16.

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