Unreal Engine Issues

Editor crash when spawning character from template

Spawning a character using an existing character as a template causes the spawned character to inherit the animation of the original and may lead to a crash. This appears to be unique to character ...

Actors in sublevels do not replicate to Clients after Seamless ServerTravel

Actors in sublevels do not replicate to Clients after Seamless ServerTravel. The user reporting this noted that "[...] UNetDriver::IsLevelInitializedForActor() keeps returning false even when the ac ...

[Interchange] Crash on asset re-import

We've started seeing a crash in editor when re-importing one of our assets. <pre class="ql-syntax">Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 783] Array index out of ...

LIVE: RENDERING: Movable Mesh does not receive shadows from Static meshes in static or stationary lighting

---------------------------------------------------------------------------------------------------------------------- Build: 4.1.0-2057451 Description: Movable meshes and blueprints set to cast n ...

MoviePipeline: Incorrect Caching of Min/Max World Delta Time

To test this issue: Create a C++ class WolrdTimeDilationDebugActor.h in your Project with the following code:// Copyright Epic Games, Inc. All Rights Reserved. #pragma once #include "CoreMinim ...

[AI] Bad entries in NavigationRepository for Box collision with bCanEverAffectNavigation set to false

Some components continue to dirty the navigation state even if bCanEverAffectNavigation is unchecked. Behavior appears very similar to an existing bug, [Link Removed] ([Link Removed]), which invol ...

Dataprep crash when creating a parameter from a datatable asset or any asset

Using Tortoise SVN causes the engine's source control to be inconsistent

If a user decides to use Tortoise SVN, the error messages given for needing to have things checked out is inconsistent. If there is a blueprint which references another blueprint, and the reference ...

[CrashReport] FPhysicsAssetUtils::CreateFromSkeletalMeshInternal()

This is a trending crash in the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 892 const FNameEntry* FName::GetDisplayNameEn ...

Packaged Game crashes when using blend space that was added from the context menu

Blendspace created within an animation blueprint from the context menu throws an assertion when packaged and ran. Only occurs in packaged projects. The blendspace will work correctly in PIE, and st ...