Hi
I've never tried this option in FileSet, but you can try:
Ignore FileSet Changes = Normally, if you modify the FileSet Include or Exclude lists, the
next backup will be forced to a Full so that Bacula can guarantee that any additions or deletions are
properly saved.
We strongly recommend against setting this directive to yes, since doing so may cause you to have an
incomplete set of backups.
If this directive is set to yes, any changes you make to the FileSet Include or Exclude lists, will not
force a Full during subsequent backups.
The default is no, in which case, if you change the Include or Exclude, Bacula will force a Full backup
to ensure that everything is properly backed up.
Best Regards
Wanderlei