Reproduce with colcon test --packages-select rosbag2_transport.

http://build.ros2.org/view/Fci/job/Fci__nightly-cyclonedds_ubuntu_focal_amd64/50/testReport/rosbag2_transport/RecordIntegrationTestFixture/published_messages_from_multiple_topics_are_recorded/

http://build.ros2.org/view/Fci/job/Fci__nightly-cyclonedds_ubuntu_focal_amd64/57/testReport/junit/(root)/rosbag2_transport/test_record_gtest_missing_result/

investigation needed