UE 5.3 - Navmesh Agent Radius Won't Update

So I’ve tried to adjust the Navmesh Agent Radius to make sure my AI isn’t getting stuck on walls, but it doesn’t do anything. I did a search and an old post said to restart the project or rebuild the navigation, but neither of those worked.

Can I edit this in the DefaultEngine.ini or something?

Urgh. I figured it out. There’s a local RecastNavMesh actor that’s added to the scene automatically when you Build Paths. I have no idea why you can adjust the Project Settings then because they’re immediately overridden by this stupid Recast actor. Even if you delete it and restart the project then build nav again, it goes back to the defaults. For some reason it registered my update to the Max Step Height from the Project Settings, but not the Agent Radius.

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Even better is the Navmesh Agent Radius specified in the RecastNavMesh actor reset itself after loading the project again today, so this is definitely a bug. I’m going to submit it.

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Does anyone have any work-arounds for this? I’m dealing with the same issue. It seems like a critical problem for anyone with bigger characters that… move.