On Sat, 16 Nov 2019 13:04:50 -0500 Sam Varshavchik wrote:
DHCP server is now apparently getting a DHCP request from a different MAC address, apparently the bridge's MAC address.
Yep, for some reason (they are calling a "bug") the bridge no longer gets the same MAC as the one physical interface attached to it. You can make things normal again by adding the HWADDR="same mac as physical interface" parameter to the ifcfg-<bridge> file.