When attempting to create a DLP Policy for "Content Matches MIP classification", the "Select Label" and "Select Sub-label" drop down does not populate with labels.
Known issue.
Release : 15.8
Component : Data Loss Prevention Enforce
Browser version: Internet Explorer 11
This issue will be resolved in a future major release of Data Loss Prevention Enforce.
As a workaround, use another browser such as Chrome or Firefox for this operation in the Enforce console.