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TPS65987D: why I cannot save the binary file and project in the TPS6598X GUI tool

Part Number: TPS65987D

I follow the instruction to have new project and it will auto load the FW base image ,then I will do some modification to fit my design . (without connecting the  USB-IIC device like FTDI )

but when I finish the modification ,I want to save the binary and project ,it reports failures like below . 

if I save the file to replace the original FW base file ,it will not report the failures ,but next time when I load the FW base file again ,it seems same with previous one ,no any changes .

can you help check it ?