In the “room to manouver” scenarios, there are some times plots with only one single slot. Which makes them pretty much useless for anything but analysing ingredients.
I guess whether or not this is a bug can be discussed. I consider it a bug because these plots are essentially useless, which defeats the purpose of the scenario. If it was at least always possible to buy two (or more) adjacent plots to get at least 2 slots, then it would be ok.