The [topicname] observation buffer has not been updated for [X] seconds, and it should be updated every [Y] seconds.
Similar to https://answers.ros.org/question/1720... I got this warning from move_base
:
When checking the the topic in question though, it was arriving at high frequency. I've solved the issue now, and will post my answer, and since it is different from the above, I think it is useful to capture it here.