Just happened to me as well... P fare DFW-EZE, used SWU's and got 1x credit on the EQM because the system re-fared me to O. Called AAdvantage and the agent was very clueless. She talked to her "higher ups" and they said she needs to submit it through for an advanced look. Says it will take up to 30 days to have it looked at.
Definitely an IT bug that AA needs to fix.