Yeah, there were some complications with that thread on launch day so I changed it so that once you put in the CBD, and only the CBD, you can close the oven and the Cosmic Brownies will appear.
It came as a result of requiring both the brownie mix and CBD throwing way too many problems my way with not too much time to delve into the code.
The timing may be finnicky so close the oven, wait a good second or two and it should be fine.
Sorry for any frustration this quirk might've caused.