Lately, attempting to perform an Advanced backup in Nandroid has been spotty for me at best. Many times the process freezes or stalls at any of the "dumping .tar" steps and I have to pull battery and re-boot and re-try. Sometimes it completes after the 2nd and 3rd attempts. Sometimes it doesn't. When working well, the backups were quick. My battery is usually at 80-100% or I am usb connected for power. I am not sure if a recent ROM I installed is creating the issue. Suggestions? Do I need to re-install Nandroid? If so, how?