control point can't see MinimServer

[gianluca]

No luck for me. The log says:
MinimServer 0.8.5.2 update 123, Copyright © 2012-2018 Simon Nash. All rights reserved.
Java™ SE Runtime Environment (build 10.0.2+13)
Java HotSpot™ 64-Bit Server VM (build 10.0.2+13, mixed mode)
Java runtime options: -Dfile.encoding=UTF-8
Platform default charset is UTF-8
System look and feel is com.apple.laf.AquaLookAndFeel
Language setting is 'eng'
Current time is Mon Aug 27 19:10:29 CEST 2018 in time zone Europe/Rome
starting MinimServer[MacBookdiadmin2.station]
Scanning directory Music
[...]
MinimServer[MacBookdiadmin2.station] is running
Startup complete

The icon on the menu bar is black on white background. The tooltip says "MinimServer[MacBookdiadmin2.station] is running".
Still, no minim is visible by either VLC or Naim.