Last night as I was loading up a few apps on my phone I hit an anomaly: I was asked to buy Amazing Weather HD. Why is that odd? Well, Amazing Weather (along with Weather Flow) is one of my top apps and I bought it the day it came out, months ago.
As it turns out, it appears that this is becoming a widespread problem with the Windows Phone Store, a return of a similar glitch that hit Windows Phone 8 users last fall. That issue was much more frustrating though as it hit a lot of apps, depending on your purchase history.