This as a forum for professionals, not further explanation should be necessary.
I've worked with backup products since the early 90s. I've worked with ARCserve, Backup Exec, Yosemite, mainly but others as well. I've been monitoring this and other forums for years on my time. I can honestly say they all have problems, they have all had their good times and their bad times. For the most part the biggest players maintain the best product, and those are ARCserve and Backup Exec. Since version 12 has come out there are a lot fewer questions being posted than there used to be. I've read that since ARCserve 12 CA's sales, # of clients, and market share have all gone up.
Now as for your problem, if it is a bug how come you are the only one with it? Sorry I've taken way too much of your time and certainly too much of mine. This is my spare time and so when it used up thats it. See most people don't help others , they don't even try. So I find plenty for me to do, and usually more than I have time for.