Known Bugs & Workarounds
This page outlines currently known issues with the Navigation Link Array (NLA) plugin, their causes, and any available workarounds or ongoing fixes.
Left and Right Points May Not Snap to Ground
Description
The component may fail to automatically place Left and Right points on the ground during map load.
Reason
When loading a full map or a cell within a World Partition setup, the geometry underneath the Navigation Link may not be loaded yet. As a result, the downward line trace used to snap points to the ground fails.
Workaround
There is currently no reliable workaround for this issue. We are actively investigating a more robust solution that accounts for World Partition loading behavior. For now, be aware that placement accuracy may vary during load time and consider manual adjustments if needed.
Navigation Links Are Ignored During Pathfinding
Description
In certain cases during gameplay, the Navigation System may ignore some or all Navigation Links, causing agents to avoid them in their paths.
Reason
Although the Navigation Links are correctly registered, Unreal Engine’s Navigation System may still fail to include them in the final pathfinding mesh. The exact root cause is under investigation.
Workaround
Locate the RecastNavMesh actor in your level and ensure the "Force Rebuild on Load" property is enabled. This forces the navigation system to rebuild its data at runtime and helps ensure that all links are taken into account.
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