Sadly, I have the same issue - not trying to tell that hey guys, you got one more person because it affects quite a few of us. I sent in a ticket and also got an answer as in this should be a bug and I should go with the bug report. It happened and let's hope so they get it and it gets enough attention to be sorted out in…
I have to second or third this problem as well. Literally tried everything to counter or to be able to claim the rewards from later encounters but nothing work. Hope at least they will pay attention on it and investigate so we will have it fixed as soon as possible. Would appreciate it a lot.