I recently updated my SEPM from RU5 to RU6a, along with its Endpoint client. No issues with the upgrade other than the ridiculous CPU spike with the console.
I updated the managed SEP client on my Windows 7 x64 machine from RU5 to RU6a. This policy has AV and PTP only...no NTP. Today I go to try to add one of these new Resume.zip attachments to Quarantine only to find my "Add to Quarantine" function is no longer working. Clicking the ADD button does nothing. Go back to the main SEP client homepage and see that my PTP is disabled and clicking the Fix button does nothing as well!
Closing and reopening the client gets PTP enabled again, but clicking ADD to Quarantine breaks it and the process can easily be repeated.
I originally had an item in Quarantine from RU5 so I deleted that...no change. Restarted the SEP service...no change. Rebooted...no change.
I goto a Windows XP 32bit VM that I uninstalled the SEP RU5 managed client and tested my RU6a install package using the same policies. Add to Quarantine appears to work fine, along with the Submit process.
I go back to my Windows 7 machine, uninstalled my SEP client, reinstalled from my new RU6a x64 managed client package and still the same issue.
Has anyone seen anything like this?