I’ve noticed something recently that has happened a couple times. I noticed this last night after finishing an interval and shifting down. It happened last week too but in the middle of a low effort between intervals. The power reading drops to some value and doesn’t change unless I change mode (e.g. slope→erg→slope) or shift the large chainring. Below are the two examples. Not a high priority since there’s a workaround but I thought I would mention it.
This is a Kickr Bike V1, firmware 1.27.0, bluetooth connection, iPhone running iOS 18.7.1,
Edit: added trainer, app, connection info.