Crash when importing FBX file a second time after an error is given

Tools - Mar 10, 2016

Editor crashes when trying to import a FBX a second time after the FBX failed to import the first time. An image of the error attached below. ...

Crash when connecting to source control

Tools - Dec 28, 2015

Attempting to connect to Perforce source control causes the editor to crash in 4.10.1. The action being preformed (connecting to source control) and repro steps (reported by licensee) match [Link R ...

Reimporting static mesh with static mesh editor window open will cause crash

Tools - Jun 12, 2015

When generating a collision box for a static mesh and reimporting the mesh with the static mesh editor window open will result in a crash. [Link Removed] ...

Replacing Selected Actors does not replace all references.

Tools - Oct 21, 2015

When using the "Replace Selected Actors with" feature in the editor, references to the replaced actor are not updated to reference the new actor (where valid). They will appear to be replaced until ...

Blendspace Animation Lag for Morph Targets

OLD - Anim - Sep 11, 2015

Blendspace animations of morph targets play at a slightly but noticably different rate between the 4.8 and 4.9 version of the UE4. ...

Blueprint Implementable Events and Event dispatchers with the same name break the event dispatcher.

UE - Gameplay - Blueprint - Sep 22, 2015

Creating an event dispatcher and BlueprintImplementableEvent function with the same names causes a signature conflict inside the blueprint. The event dispatcher is then broken as it cannot be delet ...

Crash on deleting an actor after undoing a prior delete

If an actor contains a custom SceneComponent that creates another component that is tagged with Transient and DuplicateTransient, deleting/un-deleting/deleting the actor again will cause the editor ...

Changing character collision at runtime results in erratic physics behavior

UE - Simulation - Physics - Sep 25, 2015

Using SetCollisionObjectType at runtime to change the collision channel of a character results in different results than expected. Project: [Link Removed] ...

Getting Relative Location of an Object That Once Simulated Physics Returns World Location

UE - Simulation - Physics - Dec 10, 2015

Attempting to get the Relative Location of a component that once simulated physics, but has been dynamically set at runtime to not simulate physics returns the World Location instead until the actor ...

Unused textures overridden in the material instance are still cooked

UE - Foundation - Core - Sep 28, 2015

When creating a material and then overriding the textures on the new material instance, the unused textures are still included in the cooking process. ...