Does the same thing happen on a click and drag? One thought is visa versa could be making an issue. Second thing to try is to make sure that wi...

@midihead7 When you restart, all is good, but after a few hours, it pauses annoyingly when you go to open the volume? A bit strange. Post a suppo...

@midihead7 Open Activity Monitor, CPU tab and sort by %CPU. Do you see anything using a lot of CPU? Same with memory pressure. Do you have any ...

@mistargill Did you start getting assistance today?

@midihead7 There are only two reasons for "slowness"damaged directoryDrives spinning down, so are slow to spin up to access.Do you have at least 15% f...

@mistargill Someone will look at the support file on Monday. I would not imagine that chkdisk could affect your setup, however.

@mistargill With independent disks, there is no "order" In an enclosure. So you can connect them in any order, and any enclosure.

@macrone Your license (and a refund) were taken care of, apparently. Two volumes in the sidebar is a MacOS issue. You can clear all sidebar setti...

@mistargill Its likely a hardware failure. (drive, or slot in enclosure, so try moving the drive around.) It may help to remove all the disks from ...

restart does not bring the disk back at least?

@midihead7 Thats plausible. Keep watching and lets see if that was it. Hard to imagine it would be that drastic, but who knows!

@midihead7 If you exempt a volume using System Settings/Spotlight, it should not start creating a new one on a restart. Maybe a clue?Also, use Activit...

@midihead7 Good tries. Indexing is the most likely culprit.Any anti malware type apps running?

@nomatterhowgood If you are not sure, use a Finder copy. Or, if SuperDuper can copy "to a folder", or a disk image, and verify the data, that would...

@midihead7 Did you try the trick of deleting the spotlight index and seeing if that was it?