I've had a couple coworkers complain about the Wrike desktop app suddenly moving to somewhere off screen ("becoming invisible") and becoming irretrievable. I too have this issue. We are all using multiple monitor setups (extending desktop across multiple screens).
Unlike other active desktop apps, when you hold shift and right click the Wrike app icon in the Windows task bar, there is no "Move" or "Maximize" option to help display/retrieve it. In fact, no menu/options appear at all.
This issue has led to people uninstalling the app, which is problematic because the "auto start upon windows startup" setting is key to keeping Wrike front-of-mind. Now, these users have to remember to go into Wrike and tend to only engage the platform when they get e-mails re: notices/activity.
Reinstalling the app does not fix the issue. The app opens, and appears to be running (per the preview pane you see on mouse-over), but there is no easy way we have found to bring the app onto the screen.