[CrashReport] Commandlet crash in UE4Editor_CoreUObject!UPackage::Save

Core - May 2, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Pair != nullptr [Link Removed] [Line: 520] Source Context:4 ...

Niagara Fails to Compile Shader For iOS and Android

Rendering - Niagara - Aug 2, 2018

Niagara fails to compile shader for iOS and Android. Unable to test in 4.19 due to assets provided being created in 4.20. Found in 4.20 CL# 4233996 and 4.21 CL# 4247867 ...

Niagara Sprite Particles Incorrect Facing with Orthographic Camera When "Velocity aligned" is Set

Rendering - Niagara - Aug 2, 2018

Niagara sprite particles incorrectly face with Orthographic camera when "Velocity aligned" is set for its camera alignment. UE-44491 seems to be the same issue but with Cascade. Found in 4.19 CL# ...

VR Motion Controllers: Haptic Feedback Effect SoundWaves

XR - Sep 10, 2018

Attempting to play Haptic Effect SoundWaves on both Motion Controllers will cancel or interfere with each other. Tested with Oculus Also confirmed in Main 4348893 ...

Niagara System User Parameters Resetting After Closing the Editor

Rendering - Niagara - Jan 18, 2019

Niagara System user paramemters will reset upon restarting if they are used in a Blueprint. This also occurs to the system if you move the blueprint after making changes then pressing Ctrl+Z.  Foun ...

App fails to open on Android: Assertion failed referencing LaunchAndroid.cpp:415

Tools - Datasmith - Oct 11, 2018

AR App fails to open on Android: Assertion failed referencing LaunchAndroid.cpp:415 when Unreal Datasmith is installed.10-11 11:22:57.499: D/UE4(18917): LogAndroid: Error: Assertion failed: false [F ...

PhysicsConstraint is not properly updated with world origin shifting

Physics - Feb 15, 2019

When world origin shifting occurs, or any movement of the constraint component itself, the underlying physx constraint is not properly updated, leading to incorrect results. ...

Color obtained in Retainer Box differs from color visible in material preview when set by Vector Parameter

Rendering - Aug 12, 2019

Color set by Vector Parameters in a material differs in preview from color obtained in retainer box. Obtained color does not match either sRGB or Linear values of color visible in material preview. ...

Playing as a Pawn that is a Duplicate of a Blueprint Class doesn't create an Attribute Set

Gameplay - Oct 1, 2019

Creating a duplicate of a Blueprint class that has an AttributeSet seems to be interfering with the creation of the AttributeSet. ...