Visualize multiple grid maps in rviz

[SDADEEC]

Hi, I tried to save multiple grid maps into a vector and loop through the vector to publish them one by one to the same topic and visualize them in rviz. In rviz, I also set the History Length to 100 so that I can check all grid maps in the vector simultaneously.

When the vector size is small (e.g., less than 50), rviz only shows some of them but it doesn't crush. But when the vector size becomes bigger, rviz crushes and throw std::bad_alloc.

I'm wondering if there is any rviz plugin that can show a vector of grid maps (like nav_msgs/Path for geometry_msgs/PoseStamped) or is there any proper way to show all grid maps in a vector in rviz?