DataPump Import Job Fails With ORA-39125

when performing a full datapump import we have ora-39125

ORA-39125: Worker unexpected fatal error in KUPW$WORKER.PUT_DDLS while calling DBMS_METADATA.CONVERT [TRIGGER:"<owner>"."<trigger_name>"]

ORA-06502: PL/SQL: numeric or value error

LPX-00225: end-element tag "BODY" does not match start-element tag "WHENCLAUSE"

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 105

ORA-06512: at "SYS.KUPW$WORKER", line 6377

----- PL/SQL Call Stack -----

 

object      line  object

  handle    number  name

0x9da63158     15370  package body SYS.KUPW$WORKER

0x9da63158      6436  package body SYS.KUPW$WORKER

0x9da63158     12590  package body SYS.KUPW$WORKER

0x9da63158      3397  package body SYS.KUPW$WORKER

0x9da63158      7064  package body SYS.KUPW$WORKER