Insert Slots Not Working - Needs to be restarted first

Sometimes when I load up Cubase and go to insert a plugin, nothing happens. The plugin list doesn’t even show up. I need to completely shut down Cubase and start it again. This happens at least once every 10 times I start up Cubase. It also does a funny thing on right-click menus such as adding a track. Instead of a vertical list of track types, everything is displayed in a long horizontal list.


Could you attach a screenshot, please?