It's not that I can't save while in Verdistis, I can't save ever again after entering Verdistis. I also can't walk outside the gates, back into Rivertown. Essentially, entering Verdistis ends the game for me.
I can walk past the snoozing gate guard, and the ghostly head asks if I want to go to Rivertown. Doesn't matter if I say yes or no, I stay exactly where I am (in fact, I can even walk down to the gate and open it up, but I won't transition to the next map). The same sort of thing happens, seemingly at random, to some of my characters upon entering the Lost Forest.
Even if I leave via teleport pyramid or portals, I still can't save.
