Unreal Engine Issues

Crash on reimport animation when there is an additive animation track and fbx frame number is different

When an animation sequence has an additive animation track, reimporting a fbx would crash the editor if the new fbx has a different number of frames. ...

Crash on Package When Using Nativizing Animation Blueprint Has AnimGraph Connected with Enum

If an AnimNode connected with Enum and AnimBP is nativized, the package will occur crash. Following settings is solve this issue. [BlueprintNativizationSettings] +ExcludedBlueprintTypes=/Script/En ...

Crash when importing some .skp files on MacOS

[CrashReport] Crash on Mac - UE4Editor-SlateCore.dylib!SWindow::IsVisible()

This is a common crash on Mac in the 4.16 release, and has occurred with low frequency since at least 4.11. Users have not provided any descriptions, so additional information is currently unknown. ...

Missing libomp140 DLL causing crashes in Hair Card Generator plugin

EA Motive has run into a crash when using the hair card generator plugin. A missing DLL is preventing them from creating hair cards according to the initial investigation from their engineers. More ...

Static Mesh cooking: Bad mesh description should not crash the cooker

FStaticMeshRenderData::Cache has the assertion: checkf(Owner->IsMeshDescriptionValid(0), TEXT("Bad MeshDescription on %s"), *GetPathNameSafe(Owner)); This assertion can be triggered by data erro ...

Passing an FQuat over a network will crash a game unless it is set as a variable first.

A user reported that retrieving and sending an FQuat over a network will crash a game unless the FQuat is first assigned to a variable and the variable is passed. ...

Crash when editing Gameplay Effect containing a deleted/renamed Gameplay Attribute

When modifying the name of a gameplay attribute that is used with a modifier on a gameplay effect, attempting to remove/change the modifier causes an editor crash. This appears to be due to line 29 ...

virtual texture lightmap crash due to pixel format r8Unorm_srgb in MacEditor

Currently r8Unorm_srgb is required by virtual texture lightmap, and the Metal RHI simply forbids r8Unorm_srgb on Mac platform. Since the latest MacOS 11.0+ have the support of r8Unorm_srgb, we shoul ...

LIVE: The editor crashes on Mac when attempting to open the attached Media Player .uasset

Does not occur on PC. CRASHREPORT: [Link Removed] CALLSTACK: <unknown module>! FOutputDeviceMacError::HandleError() <unknown module>! EngineCrashHandler(FGenericCrashContext const&) <unknow ...