When I import multiple routes via GPX into My Collection. If I move a route point in one route that is the same as a route point in another route it sometimes modifies both routes even though only one route is selected and active for editing in HomePort.
Each route is a separate GPX file but it appears that when they are all put into My Collection the internal database of HomePort does not treat each component separately and will sometimes internally share a route point between two routes.
This structure is contrary to the way new devices handle GPX’s as distinct datasets.