Unreal Engine Issues

A hashable struct key for a TMap cannot be seen or modified in Blueprints

TMaps that use hashable structs as the key cannot have the key set for an element that is added to the TMap in a Blueprint. A default value is set, but it cannot be seen or modified. ...

Google VR Freezes up when touching a text box

Google VR Freezes up when touching a text box This was tested on the Google Pixel XL ...

OculusRiftSplash - using deltaRotation causes flickering

Originally reported through UDN ...

Undoing a change to the content of a Text widget while it is still selected causes an assert

Hitting undo on a text widget while it is still selected will cause an assert. This appears to happen because the widget loses focus and attempts to commit it's text while still processing the undo, ...

Directx 12 RHI can run out of video memory on long process (anims import)

Groom bound to GeometryCache is unstable

This issue seems to occur only in 4.27 with DX12. Did not repro in 4.27 with -dx11, nor in UE5 DX11/DX12. ...

Referencing another blueprint with a widget on an Android HTC One plus causes a fail to launch

If the user uses a widget to reference another actor blueprint the project will fail to launch after it has been launched on to the device. This issue occurs on the Android HTC One - X Plus. ...

NavigationSystem can end up with NULLs in NavDataSet after user deleting navigation data instances in the editor

UE4 3rd Person Blueprint PIE Caused Kernel Panic on iMac/AMD 6770M

When I was running the default 3rd person shooter template which had no modifications yet, I pressed play and began to move around. Within a few seconds, the computer shut off as if the power cord h ...

VR Preview causes the editor to freeze on Mac

When trying to use the VR preview with the oculus rift for a Mac the editor freezes up and has to be shut down. ...