No, it's okay -- you're right that it might be due to you using an old save, but I'm asking these question to make sure...since, considering the way the system works, it really shouldn't matter if you're using an old save or not. The variable should just start at 0 in that case. So I'm trying to figure out at what point your variable could have jumped up, so I know where to start looking for a possible bug. The viceroy title shouldn't be a factor...the event which increases Imperial Decadence only takes effect upon the inheritance of an emperor-tier title (and, even then, only if it's your primary).
If there's something else you did, maybe? Wars won or lost, other decisions? Do you have more than one Emperor title? One thing I'm wondering is if you did something that dropped the variable and there's some kind of "wrap-around" effect where dropping it below 0 will actually make it go really high.
If we can't narrow it down more, I'll just have to see if anyone else experiences the same thing you have.
If there's something else you did, maybe? Wars won or lost, other decisions? Do you have more than one Emperor title? One thing I'm wondering is if you did something that dropped the variable and there's some kind of "wrap-around" effect where dropping it below 0 will actually make it go really high.
If we can't narrow it down more, I'll just have to see if anyone else experiences the same thing you have.