If any Bank is all Factory presets and giving you problems backing up then use Fractal-Bot to replace/overwrite that whole Bank with a fresh Factory Bank from the most recent available for download on the FAS site.As far as presets go, It crashes during the backup of bank A which are all factory presets.
"unclean/corrupt" installment of the newer firmware maybe since its working nowI've gone back to quantum 4 and no issues backing up.