I’ve been struggling with this frustrating issue for some time now. I have two USB HDDs which I use for alternating safe point backups of all the data on my 2TB My Cloud NAS. One is an older WD 500GB My Passport Essentials. This disk never has any issue. The other is a new WD 2TB Elements. This disk has the issue every time, but ONLY when it has the safepoint data on it, and NOT when it is blank. When I first plug it in, the My Cloud crashes, and I have to hard reset it. Then once it’s reset and I plug in the 2TB Elements USB disk, it’s fine, and I can do the safepoint update.
So I’m confused how the issue could be related to path length or characters, when one disk has no issues (both disks have the same length name). But similarly, if it’s a hardware issue, why does the disk only have an issue with the backup data on it and not while blank?
The 2TB Elements USB disk is always fine when plugged in to my laptop. I always use the same USB cable when plugging either disk in to my My Cloud. Both disks are formatted in NTFS.
I have the latest firmware on my My Cloud, but the issue has been present since December 2014 (when I bought the 2TB Elements USB disk), so it has probably been present across several firmware versions.
If anyone has worked out the cause of this issue, or solution, I’d love to hear about it…!!!