Unreal Engine Issues

Game thread anim task evaluation can happen on first frame update even when bTickAnimationOnSkeletalMeshInit is unset

The bTickAnimationOnSkeletalMeshInit should prevent a game thread update of the anim instance on the frame that a mesh is spawned.  However, a bug in RefreshBoneTransforms is resulting in a game thr ...

Dragging to the content browser from an open import selection window will cause an assertion crash

Using a very specific way of importing an FBX will cause a crash assertion that closes the editor without opening crash reporter. Essentially when using the import button in the content browser and ...

PIE window does not match what was set in the New Viewport Resolution setting

Setting the resolution of PIE to 4K Ultra HD results in the new PIE window going very far out of the bounds of 4K. If you are using two monitors the PIE window will bleed over a good bit into the ot ...

Translucency Volume are not correctly shadowed in 5.5 without Virtual Shadow Maps and are not light correctly by some lights

TranslucencyVolume spheres are not correctly shadowed nor lit in Unreal 5.5 with VSMs disabled. Unreal 5.4 does correctly shade the sphere without VSMs. There appears to be differences in the outpu ...

While renaming a variable in the Details panel, clicking another variable will rename it instead

While renaming a variable in the Details panel, clicking another variable will rename it instead. ...

Linux client and listen server hangs on GameThread when decoding voice chat

The ShooterGame client on Linux stops responding when the Windows host presses the Push to Talk hotkey and speaks into the mic to activate VOIP. [2016.09.16-19.09.24:159][575]LogCore:Error: Hang de ...

[CrashReport] Mac/Metal Intel compiler crash - UE4Editor-MetalRHI.dylib!CreateMTLRenderPipeline()

Mark S: This is an Intel compiler failure on macOS 10.12.6. Callstack from LogAssertion failed: [File:/Users/build/Build/++UE4+Release-4.18+Compile/Sync/Engine/Source/Runtime/Apple/MetalRHI/Privat ...

If enable iostore and run BulkData.lock twice on the same frame, the second time get pointer will be nullptr

Add and Renaming collapsed graphs in functions breaks refs to local vars

When creating a class (of any kind i.e. an actor), when a collapsed graph is compiled the ref breaks when adding or renaming the graph. ...

Character Blueprint Cannot Execute Montage to Play at a Negative Play Rate

While an Animation Montage can be played at a negative play rate in Persona, the user cannot use the Character Blueprint to execute this action. ...