Thanks for the replies so far. Map has still NO triggers in it(still it wasn't saving with some). Even if i modify through campaign editor, placing just small amounts of terrain tiles(just to get the * up above) and saving, it still shows the * and it keeps asking me if i want to save it before closing(when i want to close the editor). If i press yes(save) it won't close, still showing the *, so it kinda gets into a loop. If i press no, of course every change is lost. Never experienced anything like this in 10 years of editing.
EDIT: glimpsed a small detail. If i open another map of the same campaign file, get the * and saving it, it saves for a longer time, also showing the "Creating Campaign Archive"(which wasn't present in the other map). The other map just saves in a flash but, as i said, still shows the * above.
EDIT2: glimpsing again through the lightning-quick save bars, i can see also a super brief "Creating campaign archive"
Also, the map name originally contained a space, but i removed it and tried again......nothing.