Btw., it would be good if you try to reproduce this issue ... if you have the time, then just play the same campaign once more.
Still some notes:
Eventually check once more if you have put the the patch chiv folder actually into the RTW folder, as i already said, it needs to overwrite the former version, and of course it is
not saved-game compatible.
I haven't the time to create the last public version atm., but some day i'll check your save
There are 3 dl's of your save, so eventually another one is faster.