2023-01-05, 15:15 UTC: We are aware of the new issue following the fix and have started investigating. Please rest assured that despite the additional delay involved, all affected players will end up with correct, usable Aethers. We apologize for the inconvenience. Thank you for your understanding!
2023-01-05, 14:00 UTC: Earlier today, a technical issue caused some players to receive Aethers that could not be used on any of their Heroes. Those items are still in development and were not intended to be released into the live game at this point in time.
A solution for this issue has now been deployed, so please restart your game if you have been affected. Upon logging in, you will find your unusable Aethers replaced with usable Legendary Aethers of the same element.
Thank you for your understanding. Best of luck in the battles!