Unable to upgrade Whittaker's

I can select Whittaker’s from the Building Projects menu and I am able to allocate the wood and ore, but when I press the Confirm Contribution button, nothing happens. It does not take my resources and the project time does not begin. I can press the Confirm Contribution button infinitely, nothing happens.

Confirming JUST the wood first, then adding and Confirming JUST the ore works. It would not let me add both at once.