Workout colour coding not lining up with power trace

I’m not sure if this is a bug, a weird graphical glitch, or just something to do with the power recording on my setup (Neo2T, ANT+ to windows).
When I complete a workout I get the results screen, but the colour coded blocks don’t line up with the power recorded. Seems to get further out of sync the further into the workout.

Doesn’t really affect anything, it’s purely cosmetic, but it annoys me. Do other people see this? Any suggestions how to fix this if it is just me?