If I stand on the edge of the ledge at 554.06, 38.37, -732.24 going up the tower there is a shiny floating in mid air approx 17m from me. See screengrab:
I just found another unreachable one in a new version of the same zone just now, so thought I should mention it as not sure if your fix magically takes care of them all or you need to know specifics. I had to use a floaty cloak to even find this one! Standing at 533.20, 42.30, -779.33 looking out it is 12m from me. You're making the shiny collector in me have panic attacks not being able to get'em'all!
there were like 3 or 4. I fixed them in other version of the zone but missed this one, they should be fixed now.