Hello,
in Dynamics 365 Business Central (tested in BC14 CU15) there is a bug in the calc. regenerative plan function with transfer orders.
In my opinion there ist a small bug in the function "UpdateTempSKUTransferLevels" to bring the sku in the right order. The impact of this bug is, that the system suggest to cancel and create new transfer orders for the same date and quantity (I tested it with lot-for-lot).
In my test the codefix worked.
Best regards