Unreal Engine Issues

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 ...

Enable HDR Display Output on Game User Settings Crash

Crash when attempting to enable HDR via UserSettings This crash will also occur when project is fullscreen. User's Environment: "I have an Nvidia GTX 1080 Ti and have two monitors attached: 1. ...

Delay nodes occasionally don't fire the "Completed" output in a nativized build.

This happens when the 32-bit LatentUUID signed integer that we generate for the delay node starts with "-1" when converted to an FString (e.g. "-1824950080"). During compilation, we pack latent fun ...

Copy Pose From Mesh Node Does Not Preview in Sequencer

Copy Pose From Mesh node does not affect the animation when previewing in Sequencer. This works when played in the editor. ...

When Client Side Navigation is enabled, it is only initialized Server Side

'Allow Client Side Navigation' no longer appears to register Client-side navigation in 4.20. In 4.19 the logic that was setup to check for it returns both Client and Sever Side navigation systems as ...