Do your systems use boot from disk like a NAS or SAN or are they local disk?
We have had this same problem dating back to the 9.1.x days and have had a support issue opened for sometime now with the hopes it would get some traction. We were told that this appears to be a known bug but even with that this problem has not gained the attention of any one on the product development side to fix it. Unfortunately for us CRON is not the answer that I am willing to accept as the work around.
They are all local disk. Yes we have had a ticket in for months, and were told that we needed to enter a PER. It seems odd that it's an "enhancement" for thier product to run correctly.