Got nominally working by messing with quality of service a bit

Author: jwag

elevation_mapping_cupy/rviz/turtle_sim_laser.rviz

@@ -243,6 +243,7 @@ Visualization Manager:
         Value: /intel_realsense_r200_rgb/image_raw
       Value: false
       Visibility:
+        "": true
         Grid: true
         GridMap: true
         GridMapFiltered: true
@@ -305,6 +306,32 @@ Visualization Manager:
         Reliability Policy: Reliable
         Value: /elevation_mapping_node/elevation_map_raw
       Use Rainbow: true
+      Value: false
+    - Alpha: 1
+      Autocompute Intensity Bounds: true
+      Class: grid_map_rviz_plugin/GridMap
+      Color: 200; 200; 200
+      Color Layer: elevation
+      Color Transformer: IntensityLayer
+      Enabled: true
+      Height Layer: smooth
+      Height Transformer: GridMapLayer
+      History Length: 1
+      Invert Rainbow: false
+      Max Color: 255; 255; 255
+      Max Intensity: 10
+      Min Color: 0; 0; 0
+      Min Intensity: 0
+      Name: GridMapFiltered
+      Show Grid Lines: true
+      Topic:
+        Depth: 5
+        Durability Policy: Volatile
+        Filter size: 10
+        History Policy: Keep Last
+        Reliability Policy: Reliable
+        Value: /elevation_mapping_node/elevation_map_filter
+      Use Rainbow: true
       Value: true
     - Alpha: 1
       Autocompute Intensity Bounds: true