Python bindings does not work with fast-dds v3.2.2 and fast-dds-python v2.2.0

[georgi-petkov-keen]

We have the following scenario: We have created a c++ application using the fast-dds library. We also have a python application (mainly using subscribers) for data extraction. For consistency and keeping track of participants, publishers and subscribers we have added a DomainListener in the c++ application.

Using fast-dds v2.14.2 -> v2.14.2 fast-cdr v2.2.3 -> v2.2.3 And fast-dds-python v1.4.3 -> v1.4.3

Everything is working as expected. -> Every single participant, publisher and subscriber are also detected when created/dropped in the domainlistener methods on_participant_discovery on_data_writer_discovery on_data_reader_discovery

Updating the fast-dds to v3.2.2 ->v3.2.2 fast-cdr v2.3.0 -> v2.3.0 (note: we also tried with an older version of fast-cdr v2.2.3 -> v2.2.3 ) And using the fast-dds-python v2.2.0 -> v2.2.0 The python application starts, but the c++ application detects only the created participants.

1. The publisher and subscribers are not longer detected (when created and/or dropped) in the domain listener via on_data_writer_discovery on_data_reader_discovery

2. Python subscribers stop receiving data from the c++ application. Also the python function def on_publication_matched(self, datawriter, info) : stopped being called, thus it fails to connect(?! or match) the publisher and subscribers.

The python application was created as described in the example - https://fast-dds.docs.eprosima.com/en/v3.2.2/fastdds/getting_started/simple_python_app/simple_python_app.html