You export a TBX file from MultiTerm Desktop from a termbase containing Fields at Index level (now called Language level):
However, when you import the TBX file into a WorldServer Term Database, it does not offer to create Attributes for Index level fields:
And viewing the term in WorldServer shows that this information is missing:
Resolution
Enhancement request CRQ-31648 has been logged with our Engineering Team, requesting that this functionality be implemented in a future release of WorldServer.
As an alternative, you could connect WorldServer to MultiTerm Server if you have this product, as the Index level displays correctly using MultiTerm server-based termbases.
Root Cause
Index level Attributes are not implemented in WorldServer Term Databases.