Unreal Engine Issues

Editor grid zfighting with meshes

The editors snap grid will zfight with flat surfaces of static meshes and BSPs. Found in 4.19 CL# 4033788, 4.20 preview CL# 4121666, 4.21 CL# 4131780 ...

Crash when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles.

the editor Crashes when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles. Found in 4.19 CL# 4033 ...

Using the old DOF algorithm doesn't work properly

When using CircleDOF with the old algorithm it will not properly blur objects close to the camera.  Working properly in 4.19 CL# 4033788 Found in 4.20 Preview 2 CL# 4121666 and 4.21 CL# 4131780 T ...

Unable to call several functions in UMovieSceneParameterSection due to them not being exposed outside of the module

The AddScalarParameterKey(), AddVectorParameterKey(), and AddColorParameterKey() functions in the UMovieSceneParameterSection class are not currently exposed to be called from outside of the module. ...

GameplayTag Query on Component Instance resets when reloading level

GameplayTagQuery variables - when inside of a component, are not saved. User notes: "Note that this does not occur if the ActorComponent is added in code in a native actor and that the actor at S ...

Migrating assets to a plugin causes references to break

The migrate function is meant for moving assets from one content folder to another, so it does no actual modification of the references in the migrated assets. This is normally fine, since we expect ...

Crash when using Find in Blueprints with String Table references

Crash in UEngine::TickWorldTravel

In UEngine::TickWorldTravel, in between calls to LoadMap() and LoadMapCompleted() it is possible that an error causes PendingNetGame on the world context to be nulled out (presumably by CancelPendi ...

Crashes Caused by Deinitialization of Variables with Specific Names

I was able to repro the crash in 4.19. Unable to open sample project in 4.20 or 4.21. Per Licensee: While porting one of our classes from using UMaterialBillboardComponent to a hand rolled Billboar ...

Iterative Cook does not only cook new content from Unreal Frontend

Using iterative cooking should only cause new or changed content to be cooked but in the Unreal Frontend, content is cooked every time, despite nothing being added or edited. Logs from two subseque ...