In the current event - Seeking Fortunes, when I did the final upgrade I noticed in forum that some players were unable to do that task. When I got to that window it showed 'completed' in each of the materials needed. There was only one button below them marked 'Build'. However when I did that 200 gems were deducted from my total, then it gave me Tasha. I had thought the inability to upgrade was fixed, however I hink a new bug happened in the process, losing gems when tapping the upgrade button even though I had all the required items. Are you able to please let support (or whoever can fix this) know so it can be fixed before too many players encounter it. Thanks for listening.