Unreal Engine Issues

[CrashReport] UE4Editor_SlateCore!TArray<FHittestGrid::FCachedWidget,FDefaultAllocator>::Empty() [array.h:1530]

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Nearly all affected project names reference that this occ ...

If the DataLayerAsset name or asset path changes, Actors registered to it will ignore the DataLayer's settings

If you change the DataLayerAsset name or asset path, all Actors registered with that DataLayer will ignore that DataLayer's settings. Specifically, even if you set the DataLayer to the Unloaded stat ...

Object type properties with instanced modifier in a child actor is lost when saving

MakeEditWidget doesn't work with the blueprint editor viewport

Using the MakeEditWidget specifier inside a UPROPERTY macro and creating a blueprint based on the class will show the translation gizmo inside the main editor viewport but the gizmo will not show up ...

Divergent group barriers in Lumen

Intel reported GPU crashes on their hardware caused by divergent group barriers in ScreenProbeConvertToIrradianceCS:[numthreads(THREADGROUP_SIZE, THREADGROUP_SIZE, 1)] void ScreenProbeConvertToIrra ...

Creating an AnimStreamable asset immediately crashes the editor

When creating an anim streamable we immediately fail a check in the compression code in FCompressibleAnimData::FetchData: checkf(AnimSequence, TEXT("Invalid animation sequence while trying to fetc ...

Subobject delimiter replacement in ResolveName can cause previously valid strings to exceed NAME_SIZE

ResolveName will replace the subobject delimiter (colon) with two periods. This increases the length of the string, and can cause asserts due to the string exceeding NAME_SIZE even when the name was ...

Collision boxes slow to move when using higher poly meshes

Collision boxes become sluggish to move when using higher poly meshes. High poly boxes attached (60 K and 120K tris) Users Video for reference: [Link Removed] ...

Changing component type in code breaks blueprint details for the component

If the VisibleAnywhere specifier is use in the UPROPERTY macro of a code based component, changing that component from one type to another (from USphereComponent to UBoxComponent for example) will c ...

Custom Blend Graph read only after copy/paste of State Nodes

When copy/pasting a state network, if any transition has Custom Blend Logic, the Custom Blend Graph becomes read only in the pasted version. ...