Unreal Engine Issues

FComponentReference loses its actor reference when the target actor is reinstanced

The "OtherActor" pointer in an FComponentReference is invalidated when the referenced actor is reinstanced after compilation. ...

Montage sections are not respected when auto blend out is off

Auto-Save failing, pulling old saves and blocks users from continuing

Reporting an issue where are users are getting prompted to auto-save, but then it appears to fail and asks them to manually save. They're being prompted with outdated save files, but get stuck in a ...

MaterialProxyReplace node does not work with Approximate setting in HLOD generation or Actor Merge

This is the same behavior for HLOD generation of World Partition. Replace is useful when there is a material that changes parameters with information such as camera. ...

Check in UCharacterMovementComponent::SmoothClientPosition fails when travelling between servers

While attempting to connect and travel to a new server, the client's NetDriver will be shutdown, and a new pending net driver created (in UEngine::Browse). When the original NetDriver is destroyed, ...

Variant Thumbnails are washed out

I think somewhere in Thumbnail Generator::Generate Thumbnail FromTexture() is applying this washout. ...

Reimporting static mesh doesn't respect changed lightmap settings

Licensee reports change of behaviour between UE4 and UE5 when reimporting a mesh after changing its lightmap build settings. Change of behaviour occurred in 17404767, which was to fix a similar pro ...

Replicated subobjects list crashes with unreachable yet valid objects when UE_NET_SUBOBJECTLIST_WEAKPTR=0

This seems to occur when the subobject is considered unreachable but is not yet pending kill/marked as garbage. In this case, IsValid returns true while FWeakObjectPtr::Get returns nullptr for the o ...

VSM cached shadows not updated-invalidated when masked material parameters are updated at runtime

Indirect Capsule Shadows showing up on Unlit Characters

For this to be observed, Allow Static Lighting must be true in project settings. This appears to be coming from an AO pass and from a Raytraced Indirect Capsule Shadows. ...