I have a similar problem with buttons rendered in a modal-dialog. On iOS buttons or other inputs within a modal-dialog are sometimes not clickable. :-/ On Chrome and Firefox everything works like expected.
There are no errors and the DOM looks right.
edit: are you using a Loading-Dialog in your Controller? I found out, that the loading-dialog blocked the whole UI from interaction even though the loading-dialog was closed with $ionicLoading.hide();
I’m having the same issue. Ionic modal is rendered but buttons are not clickable. I’ve tested in on the device and emulators. Any idea what may be the root cause.