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Why this dynamically created subscriber can not receive messages?

I am writing a public transport system using RTI DDS, but I met a strange problem:

 

This situation works well:

1. start a passenger subscriber with content filtered topic
2. start publishers
3. the passenger subsriber gets the messages well
4. start a second passenger subscriber with a different content filtered topic
5. the second passenger subscriber gets the messages well


This situation has problem:

Organization:
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