Unreal Engine Issues

Crash playing source media file after attempting to play undefined source file

After attempting to preview the undefined File Media Source in the Media Player Window and getting an error. I set the path of the File Media Source to Windows sample video 'Wilflife'. Then attempt ...

Crash when compiling Blueprint class based off C++ actor with a Niagara component that has a user color curve

When creating a blueprint class based on a C++ actor with a Niagara component, color curves will cause the editor to crash when compiling the blueprint. This will impact users creating their own cla ...

[AI] BTService_RunEQS has rare crash during OnQueryFinished

The crash log shows Error: Ensure condition failed: MyMemory->RequestID != INDEX_NONE [UE5\Engine\Source\Runtime\AIModule\Private\BehaviorTree\Services\BTService_RunEQS.cpp][Line: 93]. Other logs ha ...

Creating blueprint based on landscape crashes editor

If a blueprint is created from a landscape object, the editor will crash. Frequency: 5/5 ...

Crash opening animation assets with Morph Targets

REGRESSION: YesWORKING: 3068867BROKEN: 3069877 Crash occurs when the user opens an animation with Morph Targets in Persona. ...

Audio Capture Component Crash on Android

Android is experiencing a delayed crash after an Audio Capture Component is destroyed. This appears to be a potential problem with the way Android's implementation of Audio Capture Component closes ...

[CrashReport] Linux crash - error VK_ERROR_EXTENSION_NOT_PRESENT

This is an early trending Linux crash in 4.18, but also occurred in 4.17. It seems to occur before a project loads. Callstack from Log[2017.10.26-01.39.08:606][ 0]LogVulkanRHI: Display: - Found g ...

Splitscreen causes a crash when a 3D widget is added to the level

If there is a 3D widget in the level when a player is added via split screen, the editor will crash. ...

FBoneContainer::MakeMeshPoseIndex crash (out-of-bounds array)

Landscape Tool crashes on Layer Import

The heightmap and weightmaps were created using Terresculptor, and exported in the correct format. If you import everything except the layermaps, the landscape is generated and the layers can be pai ...