Sophos Central Data Loss Prevention and Attaching Files Issue


We started experiencing file attachment issues with web-apps and Outlook 2013. We haven't changed any of our Sophos settings. Dragging and dropping the file into a new email or into the web app does not cause issues, but when using the browser window the application will just freeze and we have to use the task manager to kill it. Disabling Data Loss Prevention for the sub-estate having the issue fixed the problem, and we don't have anything actively set up for DLP anyway so this will work for now. Has anyone else experienced this and know of a fix? We may be using the DLP feature in the future and we do not want it disabled if we do end up using it. 

DLP has also been turned off under the web control policy.