This is seen when creating a policy and choosing a target (see Fig 1 and Fig 2) below:
Fig 1.
Fig 2.
Then, change the target to a different target, save the changes, and do this two times:
When going back into the policy to see "Policy Rules/Action" as seen below, until you click off of the policy and then come back to it, the expandable window will not function:
ITMS 8.6
Product Defect
This was resolved in the ITMS 8.7 release.