Parallels Client goes to tray when published applications are open

We have had a problem in our environment (not for all users but for a handful) where when they click to open a published application it will send the client to the system tray. The application will open just fine but then they have to restore the client from the system tray and go through the process again when opening another app. This has been an issue across multiple major and minor versions of the the RAS server and the client (so I don't believe it is tied to a version of our RAS server or the client we use). Most of the time a clean re-install solves the issue but it is only a temporary fix and the issue pops back up after a while. Now it has gotten worst for some users where 1 user I did a clean re-install and within a hour it was happening again. Any help or ideas would be greatly appreciated and thank you!