There seems to be a bug with ucitrack, which to my understanding maps config file names to init scripts or custom commands and is used by LuCI for reloading the correct services when a given config file was changed by the ui.
WARN:Collision with existing path. Moving /etc/config/ucitrack to /usr/share/updater/collided/etc/config
Comparing both files it appears that the file placed by the update has some entries missing (which should not!)
config firewall
list affects 'sqm'
list affects 'vpn-policy-routing'
config ahcpd
option init 'ahcpd'
config sqm
option init 'sqm'
config vpn-policy-routing
option init 'vpn-policy-routing'
whilst others been added (despite upnpd being removed from the system) that should not have been added
config upnpd
option init 'miniupnpd'