I downloaded the most recent snapshot today, deleted the older one from March which had the same issue. I'm on MacOS 11.3.1 and running the forge.sh file, version 1.6.63. My Java version is 22.0.1.
When I go to start a Booster Draft, I select New Booster Draft Game > Custom Cube > pick any cube. The app freezes for about 5 seconds then brings me to the deck editor for some reason. I tried on the official release as well and same thing happened. Thanks in advance for any advice!