This happened in the EXU2's original campaign as well, but not very often. Here, it can be random, but there's possibility that the error may disappear at a certain point.
Luckily I found a way to bypass the bug; as you begin the map, save immediately the game in two slots (preferabily, even three if you want). Then, load one of saves AND SAVE your game again in the slots.
In this way, no more scoreboard issues, and no more save corruption issues. YOU HAVE TO DO IT IN EVERY MAP THOUGH - this is important. Obviously I'll add all of this in the readme but first I want to ask you something
1)Do I have to try fixing this bug even if there's no way to actually do it? (seriously)
2)I'll leave the bug and write obviously how to bypass it in the readme, etc... It's not like a catastrophe anyway, you just have to remember to do the little save process at the beginning of every level. That's it.
3)I'll cancel G59, simple as that.
So, what to do?
Hey, does that trick work with the normal EXU2 maps? I got save corruptions pretty frequently (probably my old computer).
About the solution... I would be fine with having to do a small something like that at the start of each map, it is hardly strenuous. If it can't be fixed, it can't be fixed. The problem doesn't get in the way of gameplay, unless you forget to be careful (I always am but I'm not sure about the average EXU player).
And you are not allowed to cancel G59. Option 3 is not applicable!
(Well, I can hardly stop you... But I can find you