NUT server is not starting. Fresh 42.3 installation. Same problem was on 42.2.
Please update NUT package to working version.
All libs seems to be installed correctly.

service nut-server status
* nut-server.service - Network UPS Tools - power devices information server
   Loaded: loaded (/usr/lib/systemd/system/nut-server.service; enabled; vendor
preset: disabled)
   Active: inactive (dead)

Jul 30 21:08:05 R320 systemd[1]: Dependency failed for Network UPS Tools -
power devices information server.
Jul 30 21:08:05 R320 systemd[1]: nut-server.service: Job
nut-server.service/start failed with result 'dependency'.
Jul 30 21:09:39 R320 systemd[1]: Stopped Network UPS Tools - power devices
information server.
Jul 30 21:09:39 R320 systemd[1]: Dependency failed for Network UPS Tools -
power devices information server.
Jul 30 21:09:39 R320 systemd[1]: nut-server.service: Job
nut-server.service/start failed with result 'dependency'.
Jul 30 21:14:41 R320 systemd[1]: Dependency failed for Network UPS Tools -
power devices information server.
Jul 30 21:14:41 R320 systemd[1]: nut-server.service: Job
nut-server.service/start failed with result 'dependency'.
R320:/usr/lib # nut-scanner 
Cannot load USB library (libusb) : file not found. USB search disabled.
Cannot load SNMP library (libnetsnmp) : file not found. SNMP search disabled.
Cannot load XML library (libneon) : file not found. XML search disabled.
Cannot load AVAHI library (libavahi-client) : file not found. AVAHI search
disabled.
Cannot load IPMI library (libfreeipmi) : file not found. IPMI search disabled.
No start IP, skipping NUT bus (old connect method)