xref errors?

Hello CGP...i need help about 3ds max xref....


may ginagawa akong scene...
ang process is...
ginawa ko yung parts ng scenes seperately...
tpos inigay ko siya main scene as xref object
para pagsamasamahin...

so napagsamasama ko na..
save and exit...

kaso pagkaopen ko ulit
scattered na yung xref objects ko...
nangyayari din pag i-instance ko yun xref bigla din kakalat sila sa scene..

what to do?
paano maiiwasan ganitong problem?
or kung meron ano pong alternative na process ang pwedeng gawin.

bring up ko lang ulit itong question.

make sure all your files were built with reference to one world space. for example, if your layout plan reference in one file is centred at 0,0,0 then should be the same for the rest of the files.