User right-clicks on a table in Navigation Manager, selects Generate SQL | Creation Script option and selects a destination. The Create statement in the generated table script is truncated and a semicolon is placed at the end of the truncated statement. Issue is with any of the Editor/Clipboard/File destination options.
Large scripts cause an "ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion" exception error and statements are truncated.
Waiting for a fix to be released in a future version of Toad for Data Analysis.