Unreal Engine Issues

Attached Project Crashes on PIE and when Compiling or Attempting to Delete Third Person Character BP

In the attached project, there are crashes that occur in a few instances. When you open the Third Person Character BP, compiling or attempting to delete it will cause the editor to crash. Also, atte ...

IPA Package Sizes have Increased between Versions

When packaging for iOS the IPA file seems to have increased in size from previous versions. The licensee made an important observation that it appears the master materials have almost halved in si ...

Importing skeletal mesh with LODs and uniform scaling results in multiplicative scale per additional LOD

Here's a quick chart showing the current multiplicative pyramid style scaling that's occurring.Import ScalingLOD0LOD1LOD2LOD32.0248160.50.50.250.1250.06255.0525125625 ...

IAP failed to read purchase

In-app purchases do not seem to be working properly in Unreal Match 3 or other games ...

Light in Volumetric Fog offset in VR with Instanced Stereo and Forward Shading enabled

Light inside Volumetric Fog is offset in the right eye when viewing in VR with Forward Shading and Instanced Stereo Enabled If just Forward Shading or Instanced Stereo is enabled, this does not occ ...

Complex Landscape Collision is always used

For landscapes, both the simple and complex collision are used when simulated against.  ...

Pressing ESC while on a drag operation makes drag visual to be disappeared and OnDragCancelled not to be called.

DragDropOperation is removed when pressing esc button. but this is skipping OnDragCancelled so it can disrupt user's UMG drag operation logic.  ...

Foliage Lightmaps are incorrect when using a Lighting Scenario and running as standalone

4.22.1 Crash in FVulkanResourceMultiBuffer::Lock

Vulkan Multibuffer Lock mechanism for ReadOnly does not appear to be implemented. Temporary workaround has been provided to licensee. ...

4.23 UpdateGrass took twice time than 4.22