I was playing the Single Player Campaign, and everything seemed to be going well, until I tried to produce some units.
What happened was that I started creating my units, and they seemed to be manufacturing. After I closed the menu, something happened. When I checked on my production to see how things were going, all factories canceled everything I tried to make. Nothing.
At first, I thought that this was nothing major and that it was only a minor glitch, but then I tried again and again throughout the first few missions. They were producing while I was watching, but stopped when I closed the menu.
This only happens in the campaign.
There was no bug report, no "stderr", no crash, nothing.
OS: Windows 7 Home Premium 64-bit
Processor: AMD Phenom II X6 1045T (6 CPUs), ~2.7GHz
Memory: 8192MB RAM