Unreal Engine Issues

OnAudioPlaybackPercent Returning Incorrect Start Time of Play node with new Audio Engine

The values returned by the OnAudioPlaybackPercent event node are incorrect when calling a sound to Play with a specific Start Time via blueprint when using the new Audio Engine i.e. AudioDeviceMod ...

Edit shared defaults for multiple blueprints leads to Engine crash.

Changing any value in Edit shared defaults window with multiple blueprint assets leads to Engine crash. This is a regression from 4.16 ...

Slow response on clicking on InstancedStaticMeshComponent with many elements when using IME

When clicking on InstancedStaticMeshComponent with many elements, Editor memory usage increases and editor freezes until the operation is finished. The wait and memory usage get much worse when usin ...

Red 'X' gets displayed for stationary light in blueprint editor

Stationary light in a blueprint gets displayed with red 'X' in Blueprint Editor viewport after opening the blueprint for the second time. ...

Crash on opening a pose asset after reloading a skeletalMesh with bone name changes

Opening an old pose asset can crash the editor if the skeleton it uses gets updated. ...

InputChord "None" replaced with "Any Key" on reopen

For the FInputChord struct, in Blueprints assigning the value "None" to Key will be reassigned to the next time the Blueprint is opened. This is problematic for handling key bindings in Blueprint w ...

Non replicated actor is not destroyed on Client when added to the level

When placing an actor into the level that is not replicated the client will not destroy its copy when destroy actor is called. ...

PostProcessMaterial is not applied to NiagaraEditor preview

PrecomputedAOMask cannot be used when Virtual Texture is enabled

The problem is that when the VirtualTexture lightmap is enabled, the value returned by the material node's PrecomputedAOMask is incorrect. ...

AREnvProbe - App crash on iPad if automatic environment capture is enabled

This crash does not occur on iPhone devices. Tested on an iPhone X device. When switching environment capture to manual for iPad, the crash did not occur. ...