Missing the flight does not invalidate the coupon, these are fully flexible fares (one of the big advantage of OWE). Not showing on aa.com doesn't mean that they are not in your PNR, aa.com has some bugs when it comes to displaying some state changes and more exotic conditions; I bet they are still there and visible on a real CRS (e.g. at the airport or by an agent). Best to verify that with another call to RTW desk, or maybe even aa.com customer request would work if you don't have phone access but apparently have internet access (what is the world coming to?). In any case it is an easy matter to fix.