There’s a problem with saves in the add-on: the campaigns have disappeared again! Help!

Interesting thing, I thought it was just my computer glitching: all the campaigns have disappeared for me too... How do you deal with this?..

Well, like I'm saying: the problem is in the campaign.sav file, which is located in the saves folder in "my documents"; you just need to replace it with another file that isn't corrupted. That's why I'm asking those who have already completed all the campaigns to give me this file, because once I replace it with mine, all missions will be available. Then you can keep your own saves, and later load any of them and continue playing with your heroes, and everything will be fine.
You can check the last page of the "addon discussion" thread. One kind person posted this file on the last page, but only the first two campaigns are completed there, and the missions of the last one are unavailable. I need access to the very last mission.