When attempting to perform Sync and Convert between existing 11g model and an Oracle 11g RE alias the following error occurs:
"Source CS3: Internal Error, Script: REDataMigatorDBOR11R2"
Same error occurs when perform a Reverse Engineering on the same alias. Toad is attempting to connect to an Oracle 10g database, however, the setting in Toad was selected to connect to Oracle 11g.
Recreate the RE alias and select “Oracle 10G" rom list of Data Sources.