ORA-19597: file [string] block size [string] does not match set block size of [string]
Cause: A file was specified for inclusion in a backup set but it has a logical block size different from the rest of the files in the backup set. All files in a backup set must have the same logical block size.
Action: Specify a file that has the same block size as the rest of the files in the backup set. The conversation is still active and more files can be specified.