Reimport Datasmith doesn't update existing lightmap resolutions?

I am working on arch viz project and just realized many lightmaps are too large for the Datasmith imported objects.

I’ve tried to reimport all Datasmith objects with lower autogeneration lightmap resolution settings (in Datasmith import options), but it looks all existing objects in the scene haven’t updated their lightmap resolution (overide is not ticked so they use their default value). Also in the content browser objects still have large values after reimport.

Is this a bug?