So I've been doing pof as normal, but today I had something weird happen.

Did my usual checked everything, removed and sold and replaced everything, topped up food. All the buyers teleported as expected (thankyou for sell all option it's heavenly) but they don't teleport away after selling the max all in 1 go. They only teleport away if you try and sell 1 more than they can take. Has anyone else had this happen?