Unreal Engine Issues

Old iTunes DLL causes UBT to fail on startup

Scrubbing material roughness value in MI causes large frame drops

Editor freezes on selection of Blueprint Components

Editor freezes and stops responding on selection of Blueprint Components; Requiring the editor to be forced closed. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue di ...

Compiling blueprint component can lose data on instances in level

Compiling a blueprint component can cause data loss on instances in the level when the component instance overrides its owning Blueprint's property value overrides back to the component archetype's ...

FPS drop (present time increase) when moving the editor windows to secondary screens

The licensee has mentioned that they also see an FPS drop without a second monitor, so this can happen just by separating windows out on the same screen. ...

Crash using Oculus Hand Component

Using the Oculus Hand component in a blueprint pawn will cause the engine to crash. This occurs using the Native OpenXR with Oculus Vendor Extensions in the XR API. If the user switches to Legacy Oc ...

TArrayView64 RangeCheck prints the incorrect error messages for values over 32-bit length

TArrayView64 RangeCheck prints the incorrect error messages for values over 32 bit. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it is not a regre ...

Private functions can be overriden in the "My Blueprint" tab

Discovered during investigation of [Link Removed]. This is happening because we are not filtering out private parent functions in SMyBlueprint::BuildOverridableFunctionsMenu. With any fix that is ...

Editor crashes when edit foliage assigned to data layer in foliage mode

Importing Vehicle content corrupts SportsCar_AnimBP

If the player imports the Vehicles pack into a blank project some of the cars blueprints will be corrupt and cannot be loaded. This appears to only happen to the Animation blueprints. ...