IDE-ARM 7.80.4 Build Issue

During building stage of ble_sdk_2_02_01_18 in IAR Embedded workbench IDE-ARM 7.80.4 output application hex file is changed from original one. I already done complete project in IAR workbench IDE-ARM 7.80.4 by using ble_sdk_2_02_01_18 ,but noe same project output hex file is changed after build.