This is a very irritating and costly bug for the average user. If all your animals are hungry, as they usually are when you log on, and you use a feeding trough
before feeding the animals in the Animal Barn,
you will loose all your feed.
Example. Checking the barn it says that it needs 275 feed and your trough says that it needs 160 feed. Feding all animals in the trough and the barn should take 435 feed. In total you have 2216 feed and there should be no problem clicking on the trough and still have plenty of feed left.
Wrong. Click on the trough and almost all feed will go to the Animal Barn. Then you'll have to make more feed for the trough.
Stats before clicking on the Stable and Pig Trough.
Stats after clicking on the Satble and Pig Trough once.
The barn took 2200 feed instead of 275 feed and the Stable and Pig Trough still needs feeding.