I am running the 5.6 beta ver 7. Everytime the wallpaper refreshes, my pc loses focus on the window that is active. For example as I typed this, my wallpaper refreshed and the computer lost it’s focus so I could not type again until I clicked on the page.
You can minimize the impact of this occurring by having the WW Update Frequency set to 30 mins. Weather.com’s data doesn’t update much more frequently than that anyways.