I have been getting this error for more than a week, under the new as well as the old version and on three different computers. What's going on? I am sure I've unblocked.

When the store disappears in an auction, then one buyer is tapped out of money, the other two buyers are returned to the bottom line and can't (or won't - these are mechtrons) get off the bottom to buy. I don't know if this is an AI issue or if they really can't move off the bottom, but twice in a row this has happened in the energy market in a training game I'm playing.

Edit: I was playing this game off-line so I can't link to it, sorry.