Unreal Engine Issues

Crash when adding foliage instances to unloaded IFA

Ran into a crash when trying to programmatically add foliage to a large WP level with some unloaded IFAs.  ...

Inconsistent behavior with Register State Branches

ISourceControlProvider::RegisterStateBranches(...) doesn't reliably warn on conflicts ISourceControlProvider::RegisterStateBranches(...), specifically FPerforceSourceControlProvider, is supposed to ...

Transient Subclasses of ABrush default to supporting external packaging

ABrush::SupportsExternalPackaging overrides the base implementation of  AActor::SupportsExternalPackaging which returns false for transient actors, but it doesn't call super. As a result, transient ...

BP timelines: when converting internal curve to external, the external curve isn't used until BP is recompiled

Blueprint timelines: when converting an internal curve to an external curve asset, the curve asset's data isn't used until the blueprint is recompiled. This is confusing as there is no indication th ...

Components excluded from dedicated server can still be spawned on server

The cooker settings include the ClassesExcludedOnDedicatedServer/ClassesExcludedOnDedicatedClient lists, which specify classes that should be excluded when cooking a dedicated server/client. These l ...

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

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 ...

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 ...

GAS: FGameplayEffectCustomExecutionParameters constructor generates a new FActiveGameplayEffectHandle that is not removed from a global static map until map change

Created based on user report. The constructor of FGameplayEffectCustomExecutionParameters generates a FActiveGameplayEffectHandle that gets put in GlobalActiveGameplayEffectHandles::Map and stays t ...

Combining Layered Blend Per Bone with Cached Pose nodes can break root motion extraction

When the input to a Layered Blend Per Bone node is two instances of the same cached pose, we aren't sampling root motion correctly.  In the attached example, the weight on the root bone is 0 and Ble ...