Buses will not transfer to a new route

When I create a new route which has variations and select "allow bus route changes" this is not reflected in the game and will not allow my timetable to have a bus go on different routes.

When I first downloaded, I was able to create an Outbound Route (A-B) and an Inbound Route (B-A) and the vehicle would drive route 1 OB and then change to the Route 1 IB, however now, if i do this, the vehicle will run Route 1 (A-B) and then go Out of Service back to A.