Been doing Mythics today and people are unable to trade loot with each other. The boss would drop something and the person didn’t need it but couldn’t trade with someone who did.
This just happened to my alt on December 30th after completing mythic keystone SoA +2. The items did not have the blue text that said they were tradeable to eligible players within 2 hours. When attempting to trade the item, it would go to the bottom slot, in the enhancement slot.