IFS command problems

The problem is:



An RPGLE program creates data in the IFS using the open(), write() and
close() API:s.

This works. The files are created and are visible both when using the ACS
option for working with the IFS and with the WRKLNK command.



A number of commands that work with IFS objects report that the files cannot
be found. These commands include: CPY, MOV, DSPF and CHGOWN.



The message in all these cases is CPFA0A9.



One thing that should be mentioned is that the system is running V7R1.



Also, files uploaded to the IFS with CPYTOIMPF do not have this problem.
Unfortunately, the IFS files need to have the possibility to have more than
32K characters per record, so a program has to be able to write directly to
the IFS.



Ideas? When looking at authorities and attributes (using ACS function) all
files look similar.