Autonomoustuff lanelet2 map visualization is failing in Autoware Universe

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I am trying to use the new Autoware core and universe system. I am able to run the tutorial using the sample map that is provided. But when I try to use Autonomoustuff parking lot map, I see the the visualization map markers are coming out as empty. Hence the map is not visualized on RViz. I can see that the map loader is working fine, it logs when the map is loaded. But the issue is with the markers that are being read from the map, so you can only see the pointcloud on RViz. Please let me know if there are specific requirements that the lanelet2 map needs to fulfill for it to be usable in this system.