Senior non mortgage lien

[Julie Smith]

I just got a title report on a property that has judicial liens that is forcing the foreclosure.  The property's mortgage is NOT in foreclosure.  I was pretty sure I understood that mortgages are senior to other liens, so what could this mean:

Title def category:  NOMTGLN Possible senior non-mortgage lien recorded

How can a judicial lien recorded years after the mortgage be a senior lien?

FYI, this is in Washington if that matters?

Thanks for any help.