Ora-39126 Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71

ORA-39126 is a Data Pump error that occurs when there is an issue with the worker process. Here's a breakdown of the error:

: Using a newer export version to import into an older database version without setting the parameter correctly. Resource Issues ORA-39126 is a Data Pump error that occurs

impdp ... transform=lob_storage:no_change ORA-39126 is a Data Pump error that occurs

Then import that table separately with additional diagnostic parameters: ORA-39126 is a Data Pump error that occurs

For those encountering this error in the wild, the story above highlights the key debugging steps: