In Teamcenter the user has defined the SEEC preference to turn on STEP file translation:
SEEC_Save_Translation=1:stp:IMAN_manifestation:Image:image:1
However, the STEP file is not being generated when the Item Revision is saved/uploaded to Teamcenter.
Solution
Firstly, ensure that 'Save translation to Teamcenter' is activated in the Teamcenter tab.

Next you need to do a 'Save as Translated' - this will append the STEP file to the Item Revision.

The STEP file will subsequently be seen under the Item Revision in the Teamcenter RAC.

Hardware/Software Configuration
Platform: INTL64
OS: windows
OS Version: n/a
Product: SOLID_EDGE
Application: DOC_MANAGEMENT
Version: V221.0
Function: SEEC
Ref: 002-8523991