Unreal Engine Issues

Rear tires on vehicle in VehicleGame sample detach and drift back from axel as user accelerates

This is a regression from 4.15 as it is unreproducible on a binary build in //UE4/Release-4.15 @ 3416026. Both my 4.15. and 4.16 versions were obtained from the EGL. The more the higher the speed t ...

Copy/pasting component results in broken duplicate component (named _GEN_VARIABLE)

REGRESSION: Yes. Does not occur in 4.16.3 Using Copy/Paste to duplicate a component will result in a broken duplicate component. This doesn't occur if the user uses Ctrl+W to duplicate. On compi ...

Soft References resolved at Runtime result in References to Persistent Assets

It is believed that soft references resolved during runtime, point to the edit time instances of actors instead of the runtime instances. This issue does not reproduce when it is called from an Inp ...

Child actor passes a string to it's parent's overloaded constructor the incorrect string is received

When a child actor passes a string to it's parent's overloaded constructor using an overridden function that returns a string it won't receive the correct string. I have verified that the correct fu ...

NavModifierVolume's FailsafeExtent is applied to the wrong area

The FailsafeArea of NavModifierVolume is generated at a different location from the center of the actor when it rotated. This means that the effect of rotation is incorrect. (see attached file) W ...

BuiltData is saved alongside it's map, even if lighting hasn't changed

Saving a map will always resave the map's BuiltData, even if the BuiltData hasn't been marked dirty. Changes were made to avoid marking it dirty for UE-96057, but the call to SaveWorld in FEditorFil ...

Imported Texture shows up black in Content Browser

I'm trying to import a .exr texture created in Substance Painter and exported as a 32 bit linear exr file. The texture is to be used for roughness. However, I've stumbled upon the problem that users ...

Layered blend per bone node with blend mask setting in an animation BP will not work after restarting UE editor, until recompiling the anim BP manually.

[UELOC] UE Editor 5.3 Testing - TSR - Not Set for Localization

How to Reproduce:Launch UE 5.3 RelTest BSet language in zhCN (or other languages)input 'stat tsr' in command line4.Observe the stat in Viewport Issues: Unloc'd strings Link to the affected string ...

FILTER_COMMANDLINE_LOGGING cannot be used without forcing UE_COMMAND_LINE_USES_ALLOW_LIST

There's two ways to affect the commandline in CommandLine.cpp: FILTER_COMMANDLINE_LOGGING - for filtering certain or all args (if left empty) from the log. UE_COMMAND_LINE_USES_ALLOW_LIST - for on ...