pfsense HAProxy package won't write backend server information to haproxy.cfg

[mvern]

Hi,
Recently upgraded from pfsense CE 2.6.0 to 2.7.2.
After completing upgrade, half of my backend servers are not accessible.
Dug into it and realized that backend server information that shows up in the pfsense HAProxy GUI, does not get written to /var/etc/haproxy/haproxy.cfg.
For example, here is a screen shot from pfsense GUI:

And here is the corresponding information in pfsense /var/etc/haproxy/haproxy.cfg:

As you can see it is missing after 'load-server-state-from-file global'.

Anyone know what might be going on here?
Many thanks in advance.
Rgs,
Mike