CurrentTransaction ensure when duplicating an EQS generator

UE - AI - Aug 3, 2018

When duplicating a Generator inside an Environment Query, the action triggers an ensure and stalls the Editor for a few moments. This issue was reported and tested in 4.19.2 (CL-4033788). It was r ...

When using a NavModifier with a NavBoundsVolume being in a SubLevel, unloading the level causes a crash.

UE - AI - Jul 19, 2018

When repeatedly loading and unloading sublevels with a NavBoundsVolume, it will cause a crash when using a NavModifierVolume. When the NavMesh is unloaded, it seems that the number of the DirtyLayer ...

Setting CrowdManagerClass via Project Settings doesn't work

UE - AI - Jul 13, 2018

Due to the way we pick CrowdManagerClass at runtime (see UNavigationSystemV1's constructor) whatever is being set via project settings is ignored. ...

Nav Area class is reset after updating from 4.19.2 to 4.20 Preview 3

UE - AI - Jun 21, 2018

When upgrading a 4.19.2 project to 4.20 Preview 3 the Nav Area Class is changed to None instead of the value it was before the upgrade. Upgrading from 4.18.3 to 4.19.2 works as expected. This was t ...

When Client Side Navigation is enabled, it is only initialized Server Side

UE - AI - Jun 13, 2018

'Allow Client Side Navigation' no longer appears to register Client-side navigation in 4.20. In 4.19 the logic that was setup to check for it returns both Client and Sever Side navigation systems as ...

Crash in editor after disabling AISystem in Worldsettings

UE - AI - May 16, 2018

After disabling the World Option bEnableAISystem, clicking with the right mouse button on the asset browers (in an empty place) casues the editor to crash. ...

Navmesh generation doesn't work with Retopologize tool

UE - AI - May 15, 2018

When a Landscape is edited with the Retopologize tool, Dynamic Navmesh is no longer generated. This was also tested with Static Navmesh and yielded the same results. ...

MakeNoise detected one every two calls

UE - AI - May 14, 2018

Licensee is using the Sense Hearing of the AIPerceptionSystem. When using the GamePlay Debugger they notice that one call of MakeNoise out of every two seems ignored by the AIPerception. ...

Behavior tree Composite node tool tip

UE - AI - Apr 17, 2018

In prior versions to 4.19, the tooltips for all the composite nodes had documentation detailing their use. ...