Saving automation states problem

Hello, I’ve had this problem for a number of years now on various versions of Cubase and I can’t figure out a solution. I use a lot of automation on various plugins but sometimes when I load a project it doesn’t load the automation state - e.g the green R button should be selected but it loads as deselected. I have to always go through all of my channels clicking on the R button again to turn it on whenever I load up a project. Is this a known bug? Is there a solution? I have the latest cubase update.