Unreal Engine Issues

Spawned actors with meshes become invisible in editor after changing level

When moving actors spawned from within the editor to a new sublevel, their meshes stop rendering. However, if you open a new level then re-open the old level the meshes become visible again. You wil ...

LandscapeComponent generates incorrect OccluderVertices for software occlusion

OccluderVertices didn't consider the subsection's transition, so the position of the OcclusderVertices are not correct. I made a fix as follows: [Image Removed] [Image Removed] ...

Old iTunes DLL causes UBT to fail on startup

DAE Import - Missing geometry in imported .dae model from Cabinet Vision

Reported in SF [Link Removed] Client created a ,dae file in Cabinet Vision. When imported into TM, geometry will be missing, such as the walls and parts of the cabinets. Tested and occurs in TM 20 ...

C++ Third Person Template does not accept input for server character in PIE

When testing network multiplayer in PIE, server character does not respond to input and cannot be controlled. ...

Crash occurs running SunTemple on Nexus 6p in Vulkan mode

Testing Vulkan DLS and hit this crash when running the app on Nexus 6p. This crash does not reproduce on Nexus5_4012_Adreno 330 ...

Crash while unhiding streaming level in multiplayer

When unhiding a streaming level several times on the client there can be a crash. ...

iPhone X Notch is off center on XR and XS Max when selecting their screen size in a UMG Widget

The iPhone X notch is off center on the XS Max and the XR. ...

STAT_AI_BehaviorTree_InstanceMemory is sometimes wildly inaccurate

From the UDN thread: Turns out this is caused by the way this stat was implemented for the FBehaviorTreeInstance struct: 1) You call IncMemoryStats on construct, before the struct is populated with ...

Crash occur when switching the Ray Tracing shadow function when only shadow is enabled in the Ray Tracing

According to the licensee, this problem is caused by a variable inconsistency in Cvar. The cause seems to be the difference between the CVar reference when generating RayTracingSceneRHI and the CVa ...