Do you have any mods? No
Please explain the issue is in as much detail as possible: I have just begun the Varnhold Vanishing chapter and I don’t see any region upgrade info in the relevant menus. Although it was quite a while ago, I remember well that I restored the Temple of the Elk and the dwarven fortress in the South Narlmarshes. This is supposed to be displayed somewhere, isn’t it? Or am I confusing it with something else?