Hi Alex,
I’ve noticed this issue over the last few rides. I know I’m riding at the wattage prescribed the workout, in ERG mode, but occasionally the white wattage line dips below the light blue target into a darker blue area. I’ve attached a couple of screenshots to demonstrate what I mean. If I switch between TD and another app on my phone it sometimes resolves the issue.
I hope you can tell me what I’m doing wrong! 
Have noticed the same thing. Watts and erg-mode are still accurate, but graph is off. For me this only seems to happen after workout has been paused. Also had the impression that vertical scale becomes non-linear, very small changes in power are displayed as significant steps but when interval is over it returns to stable line (at lower power).
Very strange. Thanks for info. We will investigate
Oh my developer actually found this bug or something that looks very close and has it fixed. This should be deployed in the next day or so.
Good stuff! Thanks Alex and team.
This is fixed in new version
