We have been converting our RPG programs to RPG4. Does the RPG4 prgram handle the file buffer blocks differently to RPG400?

The reason is that we have an interactive RPG4 program updating some records, then calling an interactive RPG400 program to produce a report. This report only generated some of the updated lines, but when a re-print is done - all of the lines are printed. This did not happen when the programs were RPG400.

???? All of the files are set with FRCRATIO = *NONE.

Thanks