>Could you confirm if the error disappears if you modify rclpy to not free the qos_profile on subscription creation?
I confirmed that the error persists even without destroying the qos_profile.
>you have exactly the beta3 code without modification except that you are using your own version of rmw_coredx?
Correct. I did manage to get a not-so-helpful stack trace from gdb but I don't think it is right yet since it's from publisher.py. I'll keep working on that.
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