AeroPod, PowerPod and Newton

I’m not sure if this has been covered, but I’ve noticed that when I’m riding a constant grade, if I gear down (easier) my power readings go up and vice versa when I shift into a harder gear, the power goes down. Intuitively, that doesn’t make sense. (I use V3 and it’s synced with cadence and speed sensor). Has anyone else noticed this?
Thanks.

You're right; this doesn't make sense.

Please post a ride file where you think this problem is happening.