Details
In ATTI after Retrieve Data from Teamcenter ,select "Folder" of the top assembly and select the folder to import. Copy the folder selected using <Ctrl> + C, paste to another file's folder using <ctrl>+v. Child parts are not imported only top assembly is imported.
Solution
Do not use shortcut keys. Work Around is right click(RMB) on folder and then copy, paste.
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 1064
Product: SOLID_EDGE
Application: DOC_MANAGEMENT
Version: V109MP16
Function: SEEC
Ref: 002-8007292