Crash when splitting a UDS pin on a collapsed graph

UE - Gameplay - Blueprint - Jan 27, 2017

I came across this bug while attempting to verify UE-41073. That bug is verified, but I accidentally added the struct into the collapsed node without going into the collapsed graph and split the col ...

Android Crash on app launch if AdditionalPluginDirectories contains wildcards in path

UE - Platform - Mobile - Jun 23, 2017

Having wildcards in the path for AdditionalPluginDirectories causes apps on Android to crash on launch. When testing this on iOS, the app did not crash but froze at the splash screen instead. Androi ...

4.6.1 to 4.7 conversion crash "Assertion failed: Pin != nullptr ...K2Node_DynamicCast.cpp]"

UE - Gameplay - Blueprint - Feb 25, 2015

Several Users are experiencing crashes on importing a 4.6.1 project into 4.7.0 (Release) Here are the crash reporter links: [Link Removed] [Link Removed] [Link Removed] [Link Removed] [Link Removed ...

[CrashReport] UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren() [slateapplication.cpp:1213]

UE - Editor - UI Systems - Slate - Nov 10, 2017

This is a longstanding crash that has occurred since at least 4.13. User DescriptionsI cant package. Every time I try, I get a crash and an "Unknown Error"failed to switch between game modes and af ...

Duplicating a blueprint that implements an interface and then removing that interface will cause compile errors that don't occur if the interface was removed from the original BP

UE - Gameplay - Blueprint Editor - Aug 1, 2020

See steps to reproduce. Looks like the fixup when saying Yes to "Would you like to transfer the interface functions to be part of your blueprint" doesn't work correctly on the duplicated BP. Inter ...

[AI] Navmesh shows in editor but does not get loaded in PIE

UE - Runtime - Character - May 13, 2024

When using static or dynamic modifiers only navmesh, there are times that the navmesh will build and display correctly in editor, but it does not get properly loaded at runtime (PIE/SIE). The Recast ...

[CrashReport] Crash while snapping multiple actors at once

Tools - Aug 29, 2017

Crash occurs when selecting all actors and pressing "End" to snap them to the floor. This doesn't occur if you create a blank map and add a few actors to it. The specific conditions may need to be ...

Generated world partition maps cause AssetManager warnings

UE - Core - Data Pipeline - Cooker - May 29, 2024

When cooking world partition maps, it automatically writes out several maps in a "Generated" folder below the location of the map in the editor. In the repro above, this will create maps such as /Ga ...

Clearing SubUV Animation assigned texture Crashes Engine

UE - Graphics Features - Aug 4, 2016

Clearing the texture field in the SubUV Animation after creating it from a texture in the content browser will crash the engine. ...

Increment and decrement nodes return the incorrect value

UE - Gameplay - Blueprint - Jun 23, 2015

Increment and decrement nodes return the incorrect value User Description: Getting the result of the Increment Macro seems to be incrementing the variable twice. Very confusing. Is this normal? ...