Hi Roland, and welcome on this board.
it is because the MCC is calculating following a 128 base ( 0 to 127).
381-128 = 253
253 - 128 = 125.
i agree it can easily leads to confusions and also propose users false updates, as the correct version is 1.0.9.125, but MCC sees a 1.0.9.381 available online.
This generated confusion will be considered on a future MCC update, but don't what will be done at time of writing.