Unreal Engine Issues

Compile on load crashes for classes within an abstract class

When compiling on load in -game, a blueprint class that inherits from a native class that is marked within and the class that it is within is abstract, a crash will occur when FBlueprintCompilationM ...

[Niagara] Sampling static mesh location throws error

Niagara Parameter Collection doesn't work for Simulation Stage

Assertion failed occurs in VR when walking into water on QA-Waterworks map

Encountered a crash when testing shadows in QA-Waterworks map. I found an issue when walking into the water at the bottom for Example 2A, where it would crash upon entering the water. See screenshot ...

Enabling window animations causes dropdown menus to flicker and become unselectable

Not a regression as I was able to repro this in 4.25.4 The bug doesn't occur every single time, you may need to try disabling/re-enabling the setting and/or clicking on the menu dropdowns a few tim ...

Ensure in APlayerState::OnRep_bIsInactive may be hit

The ensure in APlayerState::OnRep_bIsInactive may be hit due to the player state being replicated before the game state. The check is necessary for making sure the game state is available, but the e ...

The TransformVectorAbsoluteToLocal and TransformVectorLocalToAbsolute seems be implemented inversely

Niagara Oscilloscope hangs indefinitely in cooked build

Cooked games will hang on startup when using the Oscilloscope data interface due to an indefinite wait in FNiagaraSubmixListener::UnregisterFromSubmix  When setting GCVarEnableAudioCommandLogging t ...

The Device Output Log does not transfer the console commands to iOS devices as expected

When set the current language and asset group to different languages, the asset group will not work

When set the current asset group language in a particular process, the asset refers to the "source asset" and output warning log. LogPackageLocalizationCache: Warning: Skipping the cache update for ...