Unreal Engine Issues

Unable to pass TMap or TSet as a parameter for a UFUNCTION

Attempting to pass a TMap or TSet into a UFUNCTION as a parameter causes a compilation error. Removing the UFUNCTION declaration works. Error messages:2>D:\Unreal Projects\Main\MyProject14\Source\M ...

Blueprint becomes dirty after play with Key get display name is in script

Blueprint becomes dirty after play with Key get display name is in the script. This issue occurs even in setups where that specific node in the event graph, not necessarily attached to anything. The ...

Transform does not update after first time for Instance Static mesh in Blueprint Editor

In 4.15 When you update the transform of an instance static mesh a second time the editor does not update the location, to get the update to display correctly you must close and re-open the blueprin ...

Crash Occurs on Exiting Standalone After Using DemoPlay

Using Execute Console Command nodes to record and play back a demo is causing a crash in standalone. Using the console commands themselves does not seem to cause the same crash to occur. ...

check(PIEInstanceID != -1) fails when executing SeamlessTravel

Per https://udn.unrealengine.com/questions/349614/checkpieinstanceid-1-fails-when-executing-seamless.html ...

Can't clear AnimBp reference from an old asset(4.10 or before) with a skeletalMeshComponent

When using an older asset(4.10 or before) with a skeletalMeshComponent in a newer engine version, a reference for the original AnimBP remains after changing the mesh component's Anim Class. ...

Collision Responses will reset to previous setting after changing the Preset Collision Profile

Collision Responses will reset to previous setting after changing the Preset Collision Profile. After the change is made and "Accept" is pressed, the Collision Responses will still have the old ch ...

Painting on animation sequence paints on invisible T-pose skeleton

SetVectorParameterValueOnMaterials In Construction Script Not Working in Packaged Game

Set Vector Parameter Value on Materials doesn't seem to have an effect in packaged games if used in the construction script. Using it on Begin Play works as expected. This did not occur in 4.14.3. ...

Blueprint compile error can occur when trying to override a BlueprintImplementableEvent that takes a custom enum as a parameter

When a BlueprintImplementableEvent that takes a custom enum as a parameter is overridden in a Blueprint, it will throw a compile error. The compile error states that the event cannot be overridden b ...