A program error might occur if you are executing intermediate code files that were created using previous versions of COBOL for UNIX and which include SORT/MERGE statements.
Programs compiled with the NLS directive that make use of COBOL SORT with alphanumeric keys return records in the standard alphanumeric order, rather than in the correct order for the NLS locale. This restriction only applies to file sorts and not to table sorts.
In mainframe sort emulation, under certain circumstances when sorting records using RECORD TYPE=VB, records are truncated by four characters.