I'm new at this and need some clarification on the correct procedure for
clearing access to a specific ip address.

Am running BM38sp3...
Have NAT, Routing, and Filters enabled. We have HTTP Proxy enabled in BM,
the workstations have private ip's with gateway and Proxy set, the routing
table covers the private ips, proxy filters work fine for web traffic
(blocking and allowing based on access rules)

To allow access for this particular application we have...
Created a filter exception for all traffic to this particular address, and
created an access rule for Port Any, Source Any, Destination ip address.

What am I missing?