rviz2 not receiving map (tutorial example)

[PVBrodersen]

I have been following along with this tutorial, and gotten to the section regarding visualization of costmaps. However, at this point, I run into 2 issues:

1. Rviz2 not receiving costmaps As the section suggests, rviz2 is unable to receive any maps from the respective costmaps topics, even though I can confirm that data is published using topic echo:

" ros2 topic echo /global_costmap/costmap header: stamp: sec: 1702383893 nanosec: 146251016 frame_id: map info: map_load_time: sec: 0 nanosec: 0 resolution: 0.05000000074505806 width: 44 height: 36 origin: position: x: -1.1546438506086725 y: -0.6746192693179669 z: 0.0 orientation: x: 0.0 y: 0.0 z: 0.0 w: 1.0 "

2. Filter dropping messages

After running "display.launch.py" it opens rviz2 and gazebo as expected, but after sometime the terminal starts outputting the following:

[rviz2-5] [INFO] [1702383769.153491354] [rviz2]: Message Filter dropping message: frame 'map' at time 1702383754.146 for reason 'discarding message because the queue is full' [rviz2-5] [INFO] [1702383770.177533838] [rviz2]: Message Filter dropping message: frame 'map' at time 1702383755.146 for reason 'discarding message because the queue is full' [rviz2-5] [INFO] [1702383772.160809140] [rviz2]: Message Filter dropping message: frame 'map' at time 1702383757.146 for reason 'discarding message because the queue is full' [rviz2-5] [INFO] [1702383774.177586825] [rviz2]: Message Filter dropping message: frame 'map' at time 1702383758.146 for reason 'discarding message because the queue is full' [rviz2-5] [INFO] [1702383775.168952119] [rviz2]: Message Filter dropping message: frame 'map' at time 1702383759.146 for reason 'discarding message because the queue is full' [rviz2-5] [INFO] [1702383776.161561609] [rviz2]: Message Filter dropping message: frame 'map' at time 1702383761.146 for reason 'discarding message because the queue is full' [rviz2-5] [INFO] [1702383777.153654436] [rviz2]: Message Filter dropping message: frame 'map' at time 1702383763.146 for reason 'discarding message because the queue is full'

Which is also represented by a drifting map frame in rviz i.e. the frame starts moving up the z-axis.

Any suggestions as to what this might be caused by?