AttachRootComponentToActor being used over a network can cause an Ensure (previously an Assertion) to be triggered.

UE - Gameplay - Jan 11, 2016

This is a continuation of [Link Removed]. The previous ticket changed an Assertion to an Ensure in order to stop a crash from occurring, and stated that a more complete fix would be coming in 4.10. ...

[CrashReport] Ensure - UE4Editor_Renderer!FPlanarReflectionParameters::SetParameters() [planarreflectionrendering.cpp:704]

UE - Graphics Features - Apr 4, 2018

No user comments in crash group. Similar callstack in [Link Removed] but that is a crash and this is an ensure. 701 if (ReflectionSceneProxy && ReflectionSceneProxy->RenderTarget) 702 ...

Thirdperson Character not Replicating correctly after being attached to an Actor

UE - Networking - Dec 20, 2017

Problem description: When the Third Person Character gets attached to any other Actor (AttachToActor, Rule: Keep World), from the view of other clients the character (capsule, skeletal mesh) is out ...

Crash Occurs When Using Move Component To and Overlap Event

UE - Gameplay - Jan 29, 2016

When using move component to to move a component, and then calling Destroy Actor when the actor overlaps another actor, a crash occurs. In this case, the user was attempting to move their static m ...

Compiler error after changing the class in a Spawn Actor from Class node, undoing with Ctrl + Z, refreshing the node, and reconnecting exposed variables

UE - Gameplay - Blueprint - May 26, 2015

Compiler error after changing the class in a Spawn Actor from Class node, undoing with Ctrl + Z, refreshing the node, and reconnecting exposed variables. "Error Internal compiler error inside Creat ...

VR Preview crash when shadow quality is set to low

UE - Platform - XR - Dec 5, 2024

[/Script/Engine.RendererSettings] r.Tonemapper.Sharpen=2 r.TemporalAA.Upsampling=False r.DefaultFeature.AutoExposure.ExtendDefaultLuminanceRange=True r.LightPropagationVolume=0 r.ReflectionCaptureRe ...

World Partition - Deleted actors can become unloaded prior to saving

UE - World Creation - Worldbuilding Tools - World Partition - Apr 11, 2025

In world partition levels, deleted actors can become unexpectedly unloaded prior to saving, causing loss of work. Specifically, this issue occurs after the undo history has been cleared (either manu ...

ShooterGame server crash Failed to find Font VRText_RobotoLarge

UE - Editor - Workflow Systems - Aug 23, 2016

ShooterGame servers crash on the Linux and Mac machines. The following failed to find Font warnings appear in the output: [2016.08.23-16.59.05:186][ 0]LogUObjectGlobals:Warning: Failed to find ob ...

[CrashReport] Mac crash - UE4Game!FShaderCache::InternalSetGraphicsPipelineState

UE - Graphics Features - Dec 1, 2017

This is a common Mac crash in 4.18. It occurs in Game mode, not in Editor. Users have not provided any descriptions of their actions when the crash occurred. Callstack from Log[2017.11.21-20.30.4 ...

Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin

UE - Gameplay - Jun 3, 2016

Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin **This is a regression. It was working in 4.11.2 Could also be related to: [Link Removed] User D ...