Unreal Engine Issues

Ensure condition failed: !TagRedirects.Contains(OldTagName) Renaming Gameplay Tag twice

It appears the ensure only happens once. Cannot get the ensure to happen once Project Settings is closed. This also occurs in 4.16.2 so it is not a regression ...

Editor is missing the Quick Feedback Message Bubble

The quick feedback message bubble is missing from the editor. It is also missing in asset editors as well This is a regression from 4.16.2 ...

Button for Swap Paint Color and Erase Color Disappeared.

In 4,15, we can use button for swap paint Color and erase color. But, in 4.16 and 4.17, it disappeared ...

Custom event parameter set to 0 by default

Default parameters do not appear to be retained for custom events. This was tested in 4.17 and the issue does not occur in 4.16. Appears to be a regression ...

UStaticMeshComponent.PreviousLODLevel always returns 0

The UStaticMeshComponent.PreviousLODLevel variable always returns 0 no matter what the last LOD actually was. Regression?: No This also occurred in 4.16 ...

Can't inherit from ALight without a linker error

This is a regression from 5.3. It should be possible to inherit from ALight outside of the engine module without any sort of errors. Case: [Link Removed] ...

Editor Crash after Compiling Primary DataAsset

After compiling a data asset blueprint, attempting to open the parent data asset will crash the editor. From licensee: This is because in FAssetEditorToolkit::InitAssetEditor() the objects in Objec ...

Crash upon opening packaged game when Event Driven Loader is disabled

Packaged games are unable to open when Event Driven Loader is disabled. The error message given is: Assertion failed: !Linker->GetSerializeContext() [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\C ...

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

[AI] BehaviorTreeEditor crash when swapping from Behavior Tree to Blackboard view.

The first time that a Behavior Tree editor window changes from the tree to the Blackboard can cause a crash if you add and remove a key from the Blackboard via a different Behavior Tree editor windo ...