If you set--menu-border-width: 0 and have a border radius the .menu element does not have the border radius correctly applied. --menu-border-radius: 1rem is a good testing value to see this.
Work-around
Use --menu-border-width: 0px instead of of --menu-border-width: 0
If you set
--menu-border-width: 0
and have a border radius the .menu element does not have the border radius correctly applied.--menu-border-radius: 1rem
is a good testing value to see this.Work-around
Use
--menu-border-width: 0px
instead of of--menu-border-width: 0