[Bug]: Maneuver arrows mirror via imageOrientation only, so CarPlay draws left turns pointing right

[Knapiii]

Mapbox Navigation SDK version

3.25.1

Steps to reproduce

1. Show CarPlay maneuvers the way CarPlayNavigationViewController does, by assigning
   CPManeuver.symbolSet from VisualInstruction.maneuverImageSet(side:visualInstruction:),
   or CPManeuver.symbolImage from an equivalent ManeuverView snapshot.
2. Navigate a route containing a left turn, in a country that drives on the right.
3. Look at the maneuver symbol in the CarPlay guidance card.

Measured on a physical head unit, iOS 26, SDK 3.25.1.

Expected behavior

The CarPlay maneuver symbol points in the direction of the maneuver.

For a VisualInstruction with maneuverDirection == .left, the arrow in the
CarPlay guidance card points left.

Actual behavior

The arrow points right. Left and right are swapped for every maneuver that ManeuverView renders by mirroring:

• .left / .slightLeft / .sharpLeft
• U-turns where drivingSide == .right
• roundabouts and rotaries where drivingSide == .left

Right turns, straight-ahead and arrivals are unaffected.

The map, the banner text and the spoken instruction are all correct at the same
time. Only the CarPlay symbol is wrong, which makes it easy to miss: the driver
is told "turn left", the route line turns left, and the icon in the corner
points right.

Only the snapshot path is affected. The in-app banner uses ManeuverView as a
live subview and looks correct. The CarPlay symbol comes from a UIImage
snapshot of the same view, and that is where the mirroring is lost.

Is this a one-time issue or a repeatable issue?

repeatable

[maru-biz]

@Knapiii Thank you for the report. I've registered a high priority bug ticket for it.

[maru-biz]

@Knapiii Hi. I have a couple of questions.

1. Could you check if you can observe the problem also in CarPlay simulator (standalone one)? Or does it occur on physical head unit only?
2. Also, could you elaborate more on your use case "Show CarPlay maneuvers the way CarPlayNavigationViewController does(...)" and why you are not using CarPlayNavigationViewController?
3. Please specify also the exact iOS version used. Have you tried different iOS versions? The issue might be related to Apple's bug in CarPlay.
4. Have you tried latest version of the Navigation iOS SDK?