I had 5 epic cores and went on an upgrade spree, upgraded 4 minis. One mini did not upgrade (mountain giant). Now I’m showing only 1 epic core in inventory and a rare mountain giant. I have lost an epic core! With how rare they are this is not nice. I pay for this game.
I also paid 8,500 arc light for an epic upgrade which should be 8000 arc light. I got charged an extra 500 arc light.