Unreal Engine Issues

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

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

'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

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

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

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. ...

The setting of the area class of the navigation link component is ignored.

Behavior tree Composite node tool tip

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

Random Deviation of 0 causes service node instantiation fail

Licensee has 4 Services that aren't being initialized with their respective Tasks when they Plays in Editor. If the Behavior Tree is opened first, the warnings do not appear. All 4 of the Services h ...

Moving RecastNavMesh in the level and then toggling Display settings causes the navmesh to move in the level

If the user moves the RecastNavMesh actor in the level, the navmesh will be offset each time they change a Display setting in the Details panel. ...

Nav link component does not appear in Blueprint editor's viewport

This also occurs in 4.19 so does not appear to be a regression. The Nav Link shows up correctly in the Main editor viewport when the component is selected. ...