I can place the granary and see the construction site, but I don't get the window that shows how much of the materials have already been built into the construction (zero in this case) and gives me the option to build it.
I can build other things and see their build windows, such as building beehives.
I have done a restart.
I have checked carefully that it is not hiding behind any other game windows I might have open. The only other game window I have open is my inventory full of materials.
What the hell am I doing wrong?