Move To Location or Actor Not Working if Location is Outside of Navmesh

UE - AI - Oct 17, 2017

Move To Location or Actor will always fail if the target location is outside of the Navmesh, even if Use Pathfinding is disabled. Found in 4.18 P4 CL# 3685441. Reproduced in 4.17.2 CL# 3658906 & 4. ...

Navmesh does not update when undoing the scaling of Navmesh Bounds Volume

UE - AI - Oct 10, 2017

REGRESSION: Yes, does not occur in 4.17.2 Navmesh does not automatically update when the user undoes the scaling of a nav mesh bounds volume. This issue occurs with both changing the scale in the ...

Execution Doesn't Resume When Hitting BT Task Breakpoint and Trying to Resume in the Behavior Tree

UE - AI - Oct 6, 2017

When a breakpoint is hit in a BT Task Blueprint, execution will not be resumed if you attempt to do so from the Behavior Tree that is running the BT Task. This will cause a crash if executed in the ...

NavLink Proxy CHILD ACTOR stops working in a Packaged and Standalone game

UE - AI - Oct 5, 2017

NavLink Proxy CHILD ACTOR stops working in a Packaged and Standalone game. Works as expected in PIE. Licensee Description: Force Rebuild on Load is not called and the nav links as child actors do ...

[CrashReport] Crash CheckForWorldGCLeaks() - EditorDestroyWorld()

UE - AI - Sep 8, 2017

This is a somewhat common but longstanding Mac crash that has affected users since at least 4.13. Recently in 4.17.1, the crashes are all occurring in various ARKit projects User DescriptionsI add ...

Error when Compiling an AIController Blueprint Class with an AIPerception Component

UE - AI - Aug 1, 2017

An error populated the output log when Compiling an AIController Blueprint Class with an AIPerception Component. This is not a Regression, as it Occurs in //UE4/Main. ...

Crash Occurs After Calling Move To Location on an AI Pawn using a DetourCrowdAIController

UE - AI - Jul 5, 2017

The editor will crash after calling Move To Location on an AI Pawn that is using a DetourCrowdAIController ...

Disabling/Enabling Nav Link Proxies Causes UNavigationSystem::TestPathSync() to Always Return True

UE - AI - Jun 9, 2017

When using ANavLinkProxy::SetSmartLinkEnabled() to toggle a Smart Link, it will cause UNavigationTestPathSync() to always return true. ...

RecastNavMesh fails to delete when grouped with NavMeshBoundsVolume - Top Down project

UE - AI - May 31, 2017

While testing in //UE4/Release-4.16 CL 3466753 in Binary – I encountered an issue when deleting NavMeshBoundsVolume and RecastNavMesh. The NavMeshBoundsVolume is deleted but the RecastNavMesh remain ...

Ensure when undoing the deletion of the RecastNavMesh - Top Down project

UE - AI - May 31, 2017

While testing in //UE4/Release-4.16 CL 3466753 in Binary – I encountered an ensure when undoing the deletion of the RecastNavMesh. Regression: No This issue also occurs in //UE4/Main and //UE4/Rele ...