Asset produces error "Failed import for object property" upon loading editor

UE - Gameplay - Blueprint - Jan 18, 2016

Filepath for asset referenced in Gamemode blueprint produces error: /Game/ACustom/Code/cBP_Gamemode: Failed import for ObjectProperty /Game/ACustom/HUD/Game_UI.Game_UI_C:STMSG Fix up redirectors ...

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 ...

Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin

UE - Gameplay - Blueprint - Sep 21, 2015

Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin. Note: this does not appear to affect their functionality as execution reroute no ...

-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 ...

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 ...

Unimplemented Simplygon function causes empty mesh LODs and crashes

Tools - Aug 31, 2018

When we do the refactor for MeshDescription we miss the staticmesh reduction project settings option and change only the quadric reduction. There are two possible fixes for this issue: 1. Implemen ...

Mobile VR - Render Targets not working with Mobile Multi-View

UE - Platform - XR - Jun 6, 2019

Render target materials display as black on mobile VR when Mobile Multi-View is enabled. Also confirmed with LDR capture source. User also reports issues with scene depth (potentially fixed with [ ...

Using OnlineSubsystemGoogle cause ITMS-90809 warning when uploading iOS build to AppStoreConnect

UE - Online - Jan 16, 2020

Because the OnlineSubsystemGoogle for iOS use old GoogleSigninSDK(Ver4.x), when uploading the iOS build to AppStoreConnect, ITMS-90809 (using a deprecated UIWebView) will be issued. To fix this, we ...