Recently I experienced an issue with an ACL where the ASA denied traffic where there was an explicit allow statement properly placed in the list.
This happened after some changes to the list were made. A few entries were marked inactive and a few were removed. This was done in the ASDM.
To remedy the issue I was forced to remove the rule allowing the traffic and re-add it.
I would like to avoid this behavior in the future so if anyone can shed some light on the problem I would appreciate it.