Hi, Customer applied the patch but the issue persists.
The patch can prevent the issue happening again, but it won't automatically cause things to recover once they've got into a bad state (by trying to replace networks).
[stack@undercloud-0 ~]$ rpm -q python-heatclient python-heatclient-1.5.2-2.el7ost.noarch
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:0076