Unreal Engine Issues

[Quartz][Device Swap] - Quartz Clock Stops when swapping Audio Output Device

When swapping the audio output device while running PIE or a packaged game on Windows, Quartz clocks stop. Does not repro in Release-4.27, but can be reproed in Release-5.0. ...

Splitting a Structure input pin from within a Collapsed node results in duplicate inputs

This is not a regression. Splitting a Structure input pin from within a Collapsed node results in duplicate inputs that over ride any data passed into the struct pin. ...

Text doesn't update when wrapped in a Retainer Box

This is a Regression. Retainer box is prevent Text to update in different situations including binding the text. ...

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 ...