No "guaranteed Union Booster" from new UQs

As title says. I cleared both Corruptor of All and Butcher of Light, and didn't get a single Union booster to drop while it says it's guaranteed in your article. I got 4 from the title NPC and that's it. Something wrong?

did you check the storage? because if your inventory was full and you put to auto loop it was send to storage directly

It goes directly into the bank, make sure you check your material bank etc

Also, it's the solo UQ, Barren Blossom, Butcher of Light which gives us union boosters, as the article says.