So we can only buy one purple alicorn now? For 50 gold coins and then the option to buy it disappears from the research center.
I would never have bought the beast bane knowing the mythic research center would only allow you to buy one of each item in it.
I can understand modifying the coins to buy the purple alicorn but not without notification, and not to make it one use only.
I really wonder why I keep being surprised that these same type of shenanigans happen, over and over.