[Bug report] Failed treasure hunt

Upon completion of a treasure hunt my client returned to the overworld view and began showing the loading icon. The loading was frozen for quite a long time forcing me to close and re-run the client.
Upon returning I discovered that I did not have the gem key that I had just earned. The map was also consumed!

Frozen loading on return to the over world has been common for me, iPhone 5s, iOS 9.3.1

Please contact our support team and we can compensate you for your treasure hunt.