I'm using Foxglove Studio to send a message to my robot but I observed that, regardless from which machine I subscribe the topic, it is always only the first subscriber that can receive messages. So I wonder what are the possible ROS configurations that make messages from a topic only available for the first subscriber that registers with ROS Core? There are probably something needs to be tuned with Foxglove Studio.
In ROS, how could only the first subscriber receive message on a topic
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Typically a topic can be subscribed by multiple subscribers, that's the main point of it I believe. However I found this (I never used it myself to be honest) but, you can take a look at it.