Blizzard have added a hotfix that allows Core Forged and Draconic Tier 2 gear which was switched to Tier 1 set bonuses to now also switch back to the original T2 bonuses. This is available at the Blackwing Lair Vendor.
In Season of Discovery, it’s been possible for players to take their Tier 2 items and exchange them for an item with Tier 2 stats and Tier 1 set bonuses. Previously, it wasn’t possible to make this exchange back, if desired.
Now it is. With a hotfix that just went live, players can go into Blackwing Lair and change any of those Tier 2 items with Tier 1 set bonuses back into the Tier 2 item with Tier 2 set bonuses.
Please note: If you’ve been inside BWL since before the hotfix, you may need to soft reset the instance to have the vendor update.
Have fun!