In my case, my "offline" (USB HDD drives, if you will, like S:) shows, Enable USN Journal
, as grayed out.
And the grayed out Max/Allocation numbers are much higher then yours?
My S: does not particularly "sleep", except that it may be physically off.
S: entries persist in Everything (even when off), which is fine.
And when I turn S: on, it only takes a few seconds to update (Everything).
In Device Manager, Disk Drives (Properties), I have the drive set for "Quick Removal", if that should matter.
(Does, Automatically remove offline volumes, need a bit of translation on your end?)