I have been seeing sometihng strange in some of our clusters ever since we moved into the OnTap 9.x versions.
From a Windows 8+ or Server 2012+ machine, we are no longer able to navigate to the .snapshot directory in Windows explorer.
If you do a DIR in command prompt, you can see all the sansphots as you should, and the Properties -> Previous Versions tab also works as expected.
Something I have seen is that in if you navigate to the full path in Windows Explorer (such as \\nas.domain.name\share_path\.snapshot\daily.2018-03-02_0010) you can access it. You are then able to access \\nas.domain.name\share_path\.snapshot just like normal until you close out.
\\nas.domain.name\share_path\.snapshot - DOES NOT WORK
\\nas.domain.name\share_path\.snapshot\snapshot_name - DOES WORK
DIR \\nas.domain.name\share_path\.snapshot - DOES WORK
DIR \\nas.domain.name\share_path\.snapshot\snapshot_name - DOES WORK
*** EDIT I was able to access the link by searching for KB 1000208 directly.
But, that artical states "This can result in the inability to see certain snapshots from the Windows Previous Versions" which is not the issues I am having. We can see the Previous Version tab without issues, it is the .snapshot directory we cannot see.