one problem happening f in the HEW for H8S2148 controllers controller remains blank


We were using HEW from 12 years , There is one problem happening from last month  in the HEW for H8S2148 controller . After building the software , *.mot file is genereted , when the same is downloaded into the controller . Flash IDE shows downloaded successful but controller remains blank and nothing gets into the controller flash .Older programs present inside the controller gets erased . Is this a problem with licence issue , any updates required for using H8S toolchain.,Kindly let me know.