After finishing an arcade game sc2 logs out

About 1/3 of the time I finish an arcade map in sc2 the interface looks broken. It has only 2 tabs and one of them is not arcade. Most options are disabled and it looks logged out. If I open the menu there is no “logout” button and I have to exit the game. Without fail whenever I use the menu to exit the game the blizzard launcher can’t re-launch the game and shows an error. The reason is because StarCraft II.exe is still running in the background and occupying over 1.6GB memory because it never closed properly. I have waited up to 7 days for the app to close and it won’t so it needs to be force closed using Task Manager. This is a bad experience.