Watch App is not working properly and positioning is faulty

Good weather forecast but: Even since I have the App in the Dock on my Apple Watch (1st gen, WatchOS 3.0) its not loading properly. The Selection of my current location on the watch leads to an loading of several minutes until the result is displayed. Also often the complication displays fantasy values.
Next on the iPhone itself, the current location sets me most time to a weather station which is about 15 kilometers away instead of choosing the ones right near me.
I hope that gets fixed soon, because overall I like the App but it annoys me since some weeks.

Hilbert von Sturzbach about Weather Underground: Local Map, v5.9