It looks like
DLP-579 may be at the wrong level in PMCS, one level too high at 02C.09 instead of a third-level branch.
Unlike the case for DM-7540, though, I think the problem here is that there is currently no suitable third-level branch of 02C.09 for this milestone. Perhaps that means that something is missing? Or is this really an 02C.10 milestone?