Hi,
What value you are passing for "_SCOPE"? Have you tried passing '1'?
Importance of scope:
_SCOPE = 1 means Lock entries are deleted while passing the control to V1 update work process.
_SCOPE = 2 means Lock entries are passed while passing the control to V1 update work process. They are deleted at the End of V2.
This is the default setting.
_SCOPE = 3 means Lock entries are created only while passing the control to V1 update work process. They are again deleted at the End of V2.
Regards,
Chandra