Sorry to hear it! About two weeks ago we closed the last of our known push bugs. There is one that's left where iOS itself will re-send an old push along with new notifications which is fixed by a phone restart. (this happens with all apps, not just ours)

If you have time, email me at robbyw@cueup.com - I'd love to talk about what things you wanted to see and let you know if any of them are on the roadmap.