Hi Michael. I know this post is quite old. But I am facing the same issue. I have done 2 attempts with both failing at different completion %. One at 26% and the second at 75% . I am currently running the third safepoint. I am also praying and crossing my fingers.
I have 3 TB of data to backup.
Did you find an alternative solution to this ??
I am having an identical problem. Sometimes I cannot create safe points, but if I can, they run for anywhere between 9% and 98% of the total data capacity to be backed up, then it freezes. So far I have failed to create a safe point, but I have wasted a significant amount of time in trying to do so, and bought another piece of WD kit (a WD Elements USB storage drive) which seems to be of no use. Hoping someone in the community reads this and has found a solution, or has some hints which might help.