A second possibility is that Sir Richard's estate, and heirs may not have had any interest in paying, speculating on an eventual sale, without any actual investment, or not having the means to pay their Quit-rent and it was lost for none payment of arrears.
Actually protected from Distraint and Escheat, by London, it is most likely that Lot 62 was 'simply' sold to discharge the accumulating debt, a land speculation inherited from an uncle, an investment gone bad.