It’s the same problem of this link .
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It seems that Unreal 5.6 preview doesn’t contain this fix. And the CL prodived by BaoKangChen doesn’t cover all the cases. When we set false to “Can Ever Affact Navigation”, trace_comp did clear up in navmesh. But when we set true back to “Can Ever Affect Navigation”, it won’t register collision into navmesh until you move it.