Unreal Engine Issues

Adding HISMC instances resets wind for all existing instances

When adding new HISM instances, actors using SpeedTree -> WorldPositionOffset material are reset. 4.19 Repro project provided by user. I was unable to get WPO wind working in 4.18, I did noticed th ...

Foliage: Speed tree wind is reset for every add/remove/update on instances

Foliage: Speed tree wind is reset for every add/remove/update on instances What is happening:When we invalidate the render state, proxy are recreated, causing the wind to be removed and add again, ...

HLODs appear to be calculated individually instead of as a group

The way in which Hierarchical Instance Static Mesh LODs' screen size is calculated appears to have changed. ...

Validate whether the usage of FPIEFixupSerializer can be removed from UWorld::DuplicateWorldForPIE

Welding doesn't work until the first time the actor simulates

Data Table Reimport - No popup to specify source file

Selecting Reimport on a DataTable created in editor no longer triggers selection popup. "The change in behavior seems to be related to changes to UReimportDataTableFactory::CanReimport() which now ...

VCAM 2.0 - No signal on iPad from Mac OSX

UDN case link with this ticket [Link Removed] ...

Mobile VR Rendering Freeze with World Composition

Rendering freezes on Oculus mobile with World Composition. ...

Animation Interpolation will not occur if the Evaluation Rate is set at the same value as skipped frames

When an animation is skipping frames, interpolation will not occur if the Max Evaluation Rate is set to the same number as the number of frames being skipped (or 1 frame higher). The Eval Rate will ...

Deleting folders in the Content Browser will not delete them permanently from Project Folder

If you delete a folder from the Content browser that is in the Starter content, The folder will reappear if you reopen the project. The only way to delete them would be from Windows Explorer. I als ...