thank you for purchasing the AD 480 pro.
Actually your file should play just fine through the reverb in realtime and you should be able to jump through the presets. Please make shure that the mix slider is not at 0 or a very low value and that both in bypass and out bypass are off. On the setup page it is possible to route mixed, dry and wet signal to the available outputs. If you never changed something there you should be fine but please check there also if something is not right.
If the problem still persists please tell me which iDevice you are using, on which iOS version you are and which audio interface you use in case you do use one.