Upgraded Farm un-upgraded: Dark Plains
I recently upgraded a Farm from level 22 to level 23. The ugprade proceeded normally .... my resources (including sketches) were deducted normally, and I waited the 19 days for the upgrade to complete. After the 19 days, the upgrade finished and I began recieving the additional food.
Now, however, the farm has reverted back to level 22. Food output is back to 7000/hr. My resources were not refunded for the upgrade I had performed (namely, I didn't get my 420 sketches back) and of course I'm out the 19 days as well.