Adding multiple Navbars onto single page not updating ID

When placing a single navbar element using blocks > navigation onto a blank page it creates an ID on navbar-nav of navbar1_collapse as well as the correlating data-target and aria-controls properties on the button which all works great.
If I place a second navbar element using the same blocks > navigation method it creates a second one as expected however the IDs remain navbar1_collapse instead of incrementing to 2 or 3 and so forth.