network-manager - cannot add second network connection (VPN or LAN) - UUID already exists


when I try to add a VPN connection or second LAN connection NM plasma applet shows me error:

A connection with this UUID already exists.

$ nmcli connection show
NAME  UUID                                  TYPE      DEVICE  
LAN   ffffffff-ffff-4fff-bfff-ffffffffffff  ethernet  enp34s0 

It looks like network-manager assigns same wrong UUID for all connections.

It looks like there is a problem with UUID generation on new Ryzen systems.