Unreal Engine Issues

Displacement + TAA causes "vibrating"/"buzzing" artifacts

There is a buzzing artifact on shadows that is seen in the provided test project. The problem seems to be far more subtle when VSM is turned off. Licensee mentions that turning r.Velocity.ForceOutpu ...

GenerateConvexHullFromPoints incorrect results

FGeomTools2D::GenerateConvexHullFromPoints can result in a point cloud that is not convex or doesn't completely cover the full area from the source points. ...

Clay render: Bump setting ignore the texture rotation

[CrashReport] Crash When Enabling OSVR Plugin

The editor is crashing when the OSVR plugin is enabled. Error Message: Unknown exception - code c06d007e (first/second chance not available) Source Context: 465 // Assign the already load ...

AnimSequence's play rate is doubled when in a SyncGroup

It is because that the RateScale is multiplied twice. First at UAnimSequenceBase::TickAssetPlayer : {{ const float PlayRate = Instance.PlayRateMultiplier * this->RateScale;}} Second at UAnimSeq ...

Assertion failed in FAudioDevice::UnregisterSoundClass when GC

The licensee reported that check(IsInAudioThread()) was failed in FAudioDevice::UnregisterSoundClass when GC. The following is the call stack: 1 #00 pc 030d7b58 libUE4.so HandleError (/home/pirates ...

Memory Leak In PageAllocator When Packaged

There is a Memory leak in PageAllocator when packaged. The leak can be stopped if "Landscape.Static" is used in console. Unable to test 4.19 since the provided project was 4.20, but Issue is reporte ...

Impossible to Batch Build on UnrealVS with Japanese Visual Studio

Missing receipt error packaging Blueprint project for tvOS with custom iOS icon (Launcher build)

This failure occurs when trying to package SunTemple for TVOS. It did not occur with a blank blueprint project, until I added a custom iOS icon and tried to package a second time (I hypothesize th ...

[Feature Request] Event triggering skipped in subsequences and shots

Events in subscenes can be skipped if playback skips over the end of the subscene before evaluating the event. ECS allows for determinism fences which can fix this issue. ...