Hlep,Get wrong UUID

Dear Aprilbro,
I set uuid by command “AT+PUID=FFFF000A000A000A09101112131415”, and get back from CC2540 with the content is “OK+Set:FFFF000A000A000A09101112131415” which is the same with uuid I just set.
However , when send command “AT+PUID?” ,I get the reply with the different uuid “FFFF002A002A002A09101112131415” .
Why would this happen? Is there anything wrong with the command?

Please check the firmware version with this command first