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MP2300Siec controllers with firmware version 1.2.2.9 may experience a bug in which the last word of the memory block %QW24576-%QW26622 (%QW26622) will map to the same register as %QW24622. Any write to either register will overwrite the other's value.The following tags are affected:

• %QB26622-%QB26623 = %QW26622
• %QB26620-%QB26623 = %QD26620
• %QB26618-%QB26623 = %QL26618