It is incredibly fucking frustrating trying to restock my shops at the moment and I can only imagine that prospective customers have many of the same issues. Walls, ceilings, items all regularly disappear. Objects can't be placed or are inaccessible once placed so that they can't be priced or purchased. A few times I have managed to walk through a set of shelves and ended up stuck behind them, even though they are theoretically flush with the wall. To fix it I, jump up and down, leave and reenter the shop, relog, sit and do nothing for 10 minutes. Then I can place another couple of items before the problems restart. It takes hours to restock. In the past it would have taken me maybe 15 minutes. Seems to have been a problem for a few releases now and getting worse. Now I am not increasing the number of items so I blame dodgy code. Anyway it's sucking the fun out of running a business and also, I presume out of shopping. For the love of me, fix the damn shops!