After upgrading to Monterey 12.6.5 mDNS names are not resolved anymore

I have a MacBook Pro just upgraded to OSX 12.6.5 and a MacBook Air still on OSX 12.6.4

After having upgraded the MacBook Pro to OSX 12.6.5 I cannot see any longer many mDNS names (as displayed in the Discovery App)...

When (and this is so so strange...) I power up the MacBook Air with 12.6.4 and launch the Discovery App, at this point on MacBook Pro with 12.6.5 many services remain not visible but others appears with no related data concerning the reachability, after a while they disappear again.

Most of missing mDNS names on Discovery App on OSX 12.6.5 are services advertised by IoT devices that were resolved without any problem up to 12.6.4 even on the MacBook Pro (they are still working and advertised/reachable as shown on MacBook Air with 12.6.4 already now).

Screenshot of the Macbook Pro with 12.6.5:

Screenshot of Macbook Air with 12.6.4:

any glue please ?

Thank you

Daniele

UPDATE: I just rebooted the Macbook Pro and now the names are visible with reachability data, I will keep under control the situation for a while, but fow now it seems to be ok again... so so strange...