Thanks for this, glad the route and the controller view worked well in the Porsche!
On the odd bits:
The jump to over 4 hours and the "seasonal closures" came from the app, not from real traffic. Out on those lanes the app most likely lost signal for a moment and recalculated the route offline. Offline, the map data gives some small roads a large time penalty, and the app showed those as seasonal closures with an estimated delay each. Once you had signal again it recalculated online and they were gone. We've changed this in the next app update: a route calculated offline leaves that penalty out of your remaining time and arrival, and such a road only gets a quiet "may be closed at times" marker, without an invented delay.
The difference between the planner (1h29) and navigation (2h15): they estimate differently, and navigation was the more accurate one (your 2h10 matched it).
The road closures option is "Ignore road closures" under Routing settings. It only appears for the HERE and TomTom engines, and a generated scenic route uses a different engine, so you didn't see it there.
CarPlay disappearing completely, as you say, sounds like the car rather than the app.
Photos on the map: start recording a tracklog, then open the recording sheet. The camera button there adds the photo at your position on the ride.
Thanks again for the detailed write-up, it helped us find the cause straight away.
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