Sounds like an honest mistake that she fixed for herself. I see no issues with Arthera. 

For the original 4 PCs in this group, we are rerolling trinkets for you as we seem to have misplaced them. If you recall your trinket, I will give you the option of keeping your original one or the new one. It should show up somewhere in your backstory, but in the end, won't have a significant effect on your mechanics.