Sorry for the late response, long work day.
Yes I am currently unable to save using quicksave, autosave or manual save. Including deleting old saves and re-attempting or saving over existing slots.
I'll try gather more info after my workday is over - do say if there is anything in particular you'd like.
Try to check the integrity of game files, looks like some sort of a cache problem to me, it hasn't been reported anywhere else so far.