I don't know how this is related to auctions and the other bugs, but something I just noticed is that the Sandstone Wall, Archway pieces have a problem. When using the align feature, these archways will go through other pieces and off the edge of the plot. Other pieces align to the center of the archway opening, not to the edges of the arch.
Also, when aligned, the archway will no longer accept movement by the Move buttons, regardless of increment used.
Same sort of thing for the wooden large archway with ivy.