Reader process reports this errorError 11009 - GetKeyValues failed: ORA-00600 in the event log.
When shareplex reader process queries the database for the key values the query fails with this ORA-600 error.
Replication is affected for the object that gets this erorr as reader cannot process the message. Check the Oracle alert log for ORA-600 error messages and investigate the ORA-600 errors. Once the ora-00600 errors are fixed on the source database reader will process the messages.
The object that is getting the ORA-600 errors will be our of sync as reader throws away the affected message and processes on with other messages.