For example, my sessions folder has 5700 items in it with gigantic names. All have current dates. Could it be something about the system having to go through those and deal with those while it's setting up the new space for the new active user? Or something else relating to that? There's an empty index.htm and index.html in there.
The only other directory with strange names like that is the /templates/compile which does have some files from 2012 in it. Should I delete out the pre-2015 compile files? Not that those would impact this issue, I'd guess, but if I'm in doing cleanup in preparation for the upgrade tonight I might as well poke around a bit.
