Hi Matt,
It looks like we are on version 4.0.0. I went in and disabled the 13 plugin steps as recommended in option 2 above and Visits are now working.
I didn't count the exact number of plugin steps that I enabled on Friday to resolve the original issue on this thread but I have a feeling these are the same 13 plugin steps. That said, I'm expecting us to run into the same Total Lead Score updating issue. I'll need to wait a few hours to see whether the scores update. I'll keep you posted.
Thanks again,
Heidi