nav mesh strange behaviour

Having some issues with nav meshes.

I have 2 agents setup in my project. I placed nav mesh volumes and checked which agents I wanted but it only builds the nav mesh for the “Default” agent not the “mouse” agent. Also for some reason I can’t see any nav mesh in the editor when I turn on the visibility. I only now what has been built because the default agents move but the mouse agent doesn’t.

I worked when I first started the project but when I tried moving around some actors it broke. Using UE5.1.

Here’s the build log:

LogNavigationDataBuild: Display: UNavigationSystemV1::Build started...
LogNavigationDataBuild: Display:    RebuildAll building NavData:  Name Mouse class /Script/NavigationSystem.RecastNavMesh agent radius 6.0.
LogNavigationDataBuild: Display:    ANavigationData::RebuildAll load time: 0.00s
LogNavigationDataBuild: Display:    RebuildAll building NavData:  Name Default class /Script/NavigationSystem.RecastNavMesh agent radius 35.0.
LogNavigationDataBuild: Display:    ANavigationData::RebuildAll load time: 0.00s
LogNavigationDataBuild: Display:    FRecastNavMeshGenerator::ProcessTileTasksAndGetUpdatedTiles build time: 0.00s
LogNavigationDataBuild: Navigation data generation finished for RecastNavMesh-Mouse (RecastNavMesh /Game/Levels/Testlevel.Testlevel:PersistentLevel.RecastNavMesh-Mouse).
LogNavigationDataBuild: Display:    FRecastNavMeshGenerator::ProcessTileTasksAndGetUpdatedTiles build time: 0.01s
LogNavigationDataBuild: Navigation data generation finished for RecastNavMesh-Default (RecastNavMesh /Game/Levels/Testlevel.Testlevel:PersistentLevel.RecastNavMesh-Default).
LogNavigationDataBuild: Display: UNavigationSystemV1::Build total execution time: 0.01s

EDIT: It seems it will only work properly if the agent name is “Default”. If I create any other agent or rename the “Default” agent something else all these bugs suddenly creep in.

Hello mate, have you found any solution?
I am about to go crazy with this.

Cheers :slight_smile: