Unreal Engine Issues

Crash saving a destructible mesh after creating it from static mesh

Crash occurs when saving a destructible mesh after creating it from a static mesh. ...

FInternetAddrBSDIPv6::SetIp doesn't handle all valid IPv6 formats

Currently FInternetAddrBSDIPv6::SetIp(const CHAR* InAddr, bool& bIsValid) does not handle all valid formats of IPv6 addresses. Need to rework the function to be more robust, and properly handle all ...

Exporting Alembic Skeletal mesh from UE4 to FBX causes a crash

Exporting an alembic skeletal mesh that has been imported and then exporting it to FBX using the asset actions options will cause a crash. Tested with: Crash - 4.13.0 Binary CL-3106830 Crash - 4.1 ...

Draw Material to Render Target renders black in Standalone

The 'Draw Material to Render Target' in blueprints renders black when launched in Standalone. This is not the case when using the same blueprint and running PIE. The interesting thing about this is ...

NavMesh movement sweep behavior should not be based on bGenerateOverlaps

A separate new flag should be used to control the sweep behavior of characters using Nav Walking behavior in CharacterMovementComponent. Existing assets should upgrade to set the value of this new f ...

SubInstance AnimInstances may not be updated in all necessary places inside SkeletalMeshComponent

After scanning through SkeletalMeshComponent, it looks like there are several places where AnimInstance is updated but SubInstances are not. This can potentially cause states to get out of sync, and ...

Compiling blueprint being used as a child actor component sets template in parent to "None"

If the user compiles the blueprint that is being used as a Child Actor, the defaults section in the Child Actor Template will be set to None and won't be usable. ...

Transform gizmo turning different colors when using the spline control points on Camera Rig Rail

Transform gizmo turning different colors when using the spline control points on Camera Rig Rail. This appears to happen more when farther away from 0,0,0. Also see some changes based on the distanc ...

Vulkan crash on Android when suspending and resuming app

Enable Sound editor preference does not disable sound during PIE

When Enable Sound is disabled in the editor preferences, sound is still played during PIE sessions. This setting does not work as expected back to 4.9, but worked in 4.8. ...