Unreal Engine Issues

UAssetImportTask::bReplaceExisting is not supported with interchange

Add this code to a function you call from a blue utility widget or any other way to start the import with this code.TArray<UAssetImportTask*> ImportTasks; for (int32 i = 0; i < cFC.Files.Num(); i++) ...

The return value of int64 FMath::RandRange() is biased

IAnimationDataController::Evaluate implementations do not account for compatible skeletons

Looks like we are missing code in the Evaluate methods similar to what we are doing in  DecompressPose to account for compatible skeletons.  The easiest way to repro is in a standalone game because ...

[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 ...

Looping Gameplay Cues are not removed if GameplayCueNotifyTagCheckOnRemove is true

GameplayCues inheriting from GameplayCueNotify_Actor no longer have their Removed functions called when removed via UAbilitySystemComponent::RemoveGameplayCue if GameplayCueNotifyTagCheckOnRemove is ...

Level Sequence with Media track hangs when scrubbing the timeline

Adding a media track(.mp4/avi) into a level sequence causes the editor to hang when scrubbing the timeline, or enabling/disabling the media track. ...

Perforce: Deleting and Restoring an Asset doesn't Update Perforce

When you delete and replace an asset with the same name, P4 will pick up the delete but not the add. It was mentioned that there is a P4 command (something like "reopen as add") that should be used ...

Debug information is sometimes missing when compiling with cl-clang

Via UDN: As has been discussed previously here and in CL 20055361, debug information is sometimes missing when compiling with Clang. We've pinpointed this to debug information not being emitted fo ...

Unable to set simulate physics to false through blueprints

If "Editable when Inherited" is disabled for the static mesh component the issue does not occur. The bug could be related with other UDN cases:https://udn.unrealengine.com/s/case/5004z00001ruXmEAAU ...

Animation Montage Section Frame snaps montage segments to beginning of timeline

Moving a Montage Segment in an Anim Montage via section frame causes the Montage Segment to snap back to the beginning of the timeline. ...