Multiple tunnels drop after changes to single tunnel
I have about 15 offices on pfSense and each site has ipsec to all the others. If I make a single change on one tunnel e.g. a new IP address, it seems like most, if not all the other tunnels disconnect. Maybe not immediately, but soon after the change, I have to log in and "disconnect", even though it shows as "connected", and then "reconnect", after which all is good again. Until the next time.
This is pfSense 2.4.4 p2.
I am not resetting states, or restarting the ipsec service, just changing the settings on one single IP and applying the changes. Is there something obvious that I am doing to cause this?