Unreal Engine Issues

Mentioning "_Validate" suffix in code comments to function names causes Compiler error

When mentioning the _Validate Suffix in code comment, Visual Studio compiler throws an error. ...

Lighting not rebuilding. SWARM: "Error: A 32 bit processes cannot access modules of a 64 bit process."

Material Usage Flags not triggering Source Control

Usage Flags are not correctly marking Materials as dirty when automatically setting and with using a Source Control method. Compact Repro Steps from User: "To reproduce: Create a entrance level th ...

Bluerpint nativization failed for calling TMap::Find function of a map container with an enum type key

Followings are nodes in the repro project. [Image Removed] Here's a generated code of the BPvoid ANewBlueprint_C__pf1010915279::bpf__NewFunction_0__pf() { uint8 bpfv__CallFunc_GetInt_NewParam ...

Non-nativized classes that implement a nativized interface class do not get interface methods called when invoked through a Blueprint function library.

UObjectBaseUtility::GetInterfaceAddress() fails due to an incorrect serialized value of the 'bImplementedByK2' property within the non-nativized class's Interfaces array on save. See support thread ...

When editing a Niagara module an error can occur if using non-module functions, even with a correctly set usage bitmask

When editing the module the call to FHlslNiagaraTranslator::HandleDataInterfaceCall has the usage "Module", so it treads the module as if that was its stack context, even though the module's usage b ...

Self Shadow casts shadow on itself

I'm not sure which way this one should go, but there is inconsistency with how Self Shadow works when compared to the Direcitonal Light or Point Lights. When Self Shadow is enabled on a Directiona ...

Crash in ProceduralMeshComponent when building lighting

Crash on build in editor with UProceduralMeshComponent 4.8 p2 ...

Collapse All/Expand All not functioning as expected

This is only happening in the Editor Preferences/Project Settings. Hitting the Collapse All option removes everything and leaves the window blank where all of the settings were. Expand all brings th ...

SetGamePaused documentation does not match functionality

SetGamePaused documentation states that it returns "whether the game was successfully paused/unpaused." This seems to imply that a return value of true means either the game was paused and was unpa ...