Unreal Engine Issues

Desynchronised playback of firstime played SoundWaves with active AudioStreamCaching

The SoundWave in the Content folder of the attached Project has been exported from Nuendo @ 120BPM 4/4, with a duration of exactly 1 Bar. The BP_Audio Actor uses the TimeSynthComponent to provide sa ...

Old iTunes DLL causes UBT to fail on startup

Translucent Materials no longer reflect light when using Forward Lighting variable

Translucent materials are no longer showing light reflections in scene when using r.forwardlighting 1 with lights. This is a regression from functionality in 4.11.2. This no longer works with 4.12 ...

ARCore plugin missing 'tools' components

https://forums.unrealengine.com/development-discussion/vr-ar-development/1494917-ue-4-20p4-arcore-image-database-cannot-build/page2 Bo Pang from Google writes: "I think there are two issues here: 1 ...

The Height of a Jump When Holding the Jump Button is Dependent on Framerate

Setting the Max Jump Hold Time variable to 1 second, and then holding the jump button produces different results depending on the framerate. In this case, the normal jump is at a specific height, bu ...

VR Trackpad Axis Values 0

Trackpad Values return 0 Additionally: I also observed that the Go's trigger is registering as Trigger MotionController (R) Facebutton 1  and that previously there were MotionController (R) Thumb ...

"Always Center Window to Screen" No Longer Functioning in New Editor Window (PIE)

Regression: In UE4.10, the border that now occurs around New Editor Window causes window to extend beyond native screen resolution designated in Editor Preferences causing the window to 1) Not be ce ...

r.Lumen.Reflections.DownsampleFactor split screen artifact

In Split-Screen, with "r.Lumen.Reflections.DownsampleFactor" set to 2, it is possible to have vertical colored artifacts on View 1 (the second view). The Licensee reported the artifact occurred on ...

Chaos : Rigid body sleeps when very small external force is applied by AddForce

When a small external force is applied to the rigid body, the VSmooth value is reset in the ResetVSmoothFromForces function. Since this function ignores the current velocity, a very small velocity ...

Collision Responses will reset to previous setting after changing the Preset Collision Profile

Collision Responses will reset to previous setting after changing the Preset Collision Profile. After the change is made and "Accept" is pressed, the Collision Responses will still have the old ch ...