Comment 3 for bug 985100

If you look to the north-west port from the target area, off it's west coast is a stationary ship full of bread and some meat. This may have the "requested" bread in it. This doesn't explain why the partially-built warehouses haven't been fulfilled from the warehouse to the east. Maybe the stuck "food ship" was going to collect the required building materials but never got there?

After stopping /everything/ (what an incredible economy!) I found that the port nearest to your four troublesome buildings eventually delivered the required wares to both training sites and the warehouses. It was so busy fulfilling the "eject bread" order that it the other wares must have been sat in a queue. n.b. I did not make any changes to flags, roads or wares in any sites at all, just stopped the production of all sites.