Various problems with adding new stops:
(1) Adding a stop from an Instant Search (Google) POI result
When adding a stop from an Instant Search result—any result that comes up with the bluish background before you press "Search"—the Add a Stop / New Drive dialog does not come up. It adds the stop without asking. Instant Search only started working for me the other day, so I only just noticed it.
To reproduce: Start a route to a destination. Open the Navigate menu. Start typing a search. Select one of the Instant results.
Desired result: Dialog asking you whether you wish to Add a Stop or start a New Drive.
Actual result: The Instant result is added as a stop (skipping the dialog).
(2) "Routes" button in the main menu does not remember your first stop
When you have a two-stop route programmed, the "Routes" button in the main menu forgets the stop. The routes given will all be to the final destination.
To reproduce: Start a route to a destination. Add a stop. Open the main menu. Select "Routes".
Desired result: Up to three alternative routes to the first stop and then to the final destination.
Actual result: Up to three alternative routes to the final destination.
Selecting any of the routes works as expected—you get the route to your final destination only.
(3) "Routes" button in the main menu, followed by "Back", only halfway remembers your first stop
If, instead of selecting one of those routes, you press the "Back" button in the upper left corner, you retain your original two-stop route, except the entire route is purple and there is no indication or notification when you reach the first step.
To reproduce: Follow the steps in (2). Then, press the "<" back arrow in the "Routes" dialog.
Desired result: Return to the main screen with your two-part pink-and-purple route.
Actual result: Returns to the main screen with your route, except it is all purple and there is no "first stop" flag or alert.