The web interface gets it correct, but the mobile app's positioning of the peak power phase is wrong. I'd also argue that the main power phase is off too (see Avg PP End between Left and Right)
Oh, and other nit-pick, in the Power Phase Help, it says my balance is in ° instead of %
Attached pictures from same ride.
v4.18 ciq.forums.garmin.com/.../1478086.png ciq.forums.garmin.com/.../1478087.png