Instance Static Meshes spawned at Runtime do not have collision

UE - Gameplay - May 8, 2015

Spawning an Instance Static Mesh at runtime does not have collision. This issue appears only in 4.8 Preview 1 and the 4.8 Release branch (tested on CL-2540862), but is fixed in Main Branch as of Ma ...

-binnedmalloc is broken on Linux

UE - Platform - Linux - Oct 31, 2016

In 4.13 launching a linux game with -binnedmalloc will use the binned allocator. In 4.14 the command line was accidentally changed to -binnedmalloc1 while making other changes. It is still -binnedm ...

CRASH: Editor Crashes When Minimum Value of X Axis Range in 1D Blendspace is not set to Zero

OLD - Anim - Nov 17, 2014

Crash Reporter: [Link Removed] In a Blend Space 1D, setting the minimum value to any variable other than zero then applying and saving results in the editor crashing. Since being labeled "fixed," ...

Content Examples: Blueprints_Overview Stand 1.7 Spark particle system does not fire from coin

Docs - Samples - Jan 19, 2017

During runtime, the red coin in Stand 1.7 on the Blueprints_Overview map of Content Examples should emit a large spark particle system 5 times. While investigating, I tried disabling "Use Fixed Rel ...

Crash promoting a float pin from a split vector in Anim Blueprint

OLD - Anim - Jun 7, 2017

REGRESSION Yes, does not occur in 4.16. Crash occurs when the user splits a vector pin on an anim node and then tries to promote one of the float nodes to variable. I could not reproduce this issu ...

Map load stalls in texture streaming code

UE - Graphics Features - Jun 13, 2017

A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...

shadow seam occurs when lighting is built after object is rotated

UE - Graphics Features - Jul 12, 2017

There is an issue that is occurring where visible shadow seams appear after an object is rotated where it was not previously. CL tested 4.15.3 - CL 3450819 - Issue is present 4.16.2 - CL 3514769 - ...

Yellow 'Revert to Default' arrow disappears when not on screen

Tools - Jul 20, 2017

When a details value is changed, the yellow 'Revert to Defaults' arrow next to the changed value will vanish if the changed setting is scrolled off screen. This also prevents the arrow from reappea ...

No Blueprint compile warning with an improperly copied component reference

UE - Gameplay - Blueprint - Sep 19, 2017

When a blueprint's component reference is copied and pasted into a blueprint that does not have the copied component, the blueprint with the copied reference compiles Note: This occurs when the cop ...

Unable to use wrap with or replace with for widget components that are children of an expandable area component

UE - Editor - UI Systems - Sep 29, 2017

With the expandable area widget component, you are unable to use the wrap with or replace with for widget components. This issue does not appear to be a regression. Versions Tested: Issue occurs in ...