This issue is known within BAAN and it depends what boxes you select when a project is copied.
It also depends if you have many budget lines and elements and/or activities associated to the source project.
Please let me know what your selections are in tppdm7840m000.
I also would like to know how large your element structure and/or activity structure is.
You can include a print screen of session tppdm7840m000 in your reply or mail it directly to me at firstname.lastname@example.org
This additional information will help me to assist you further.