What you will want to keep in mind is that the *agg* interfaces are representation of individual interfaces as noted above.  Otherwise, what you specify in the pull-down is ignored.  For example:  10gige-agg-1 = 10gige-1 and 10gige-2   For the 1gig interfaces, the *agg* interfaces represent the following individual ones:  ext-agg = ext-1 and ext-2 ext-agg-1 = ext-3 and ext-4 ext-agg-2 = ext-1, ext-2, ext3, and ext-4   Could you share a current screenshot of the pool interface configuration?  What I will be looking for if you plan to use (Active / Passive Failover) link aggregation is the following assignment for each node: 10gige-agg-1.   If we see individually: 10gige-1 and 10gige-2 this will explain what you originally reported.  Again, you are not utilizing link aggregation by assigning the individual interfaces to the pool, and therefore, they are each assigned (at least) one IP.   It is possible I am misunderstanding, but the screenshot should provide enough confirmation.
IHAC that configured 10G networking to active/passive. However when you look at the network pool I can see IP addresses on all ports.  Also when you do multiple pings to the smartconnect DNS name I am returned the IP's for both ports.  Obviously not at the same time.  Is this expected behavior?  This seems to be more of an active/active not active/passive.
10G network ports set to active/passieve act like active/active