I just purchased the D-274 standard lib and decided to uninstall the bid band orchestra and uninstall the Synchron player. After uninstalling it the Synchron Piano player got back in its place in the launchpad. So I guess that MacOS recognized these as the same app in the launchpad.
But maybe good idea for the devs here to have a look at it if it might affect others.
Well now I'm back to being happy... just a thinner wallet I guess :)