I'm on PC, and this is with BRAND NEW SAVE FILES, SPECIFICALLY MADE for C2.Maybe worth a look at old problem Going to post this here
On the PS3 Skrim had a save problem with the longer you played, the more data it had, would cause saving issues.
I know it was not the same engine but it is similar. Bethesda did eventually patch it.
Looking at how they patched it might give a led to what is going on.
Just saw a video talking about it, thought I would mention it.
Again, do none of you actually read?