Just downloaded alfred v3 this morning, migrated settings and all other necessary tidbits. Then did my deep muscle memory gesture cmd+space and... Nothing happened. Retried. Still nothing.
Tried option+space. It worked, so I went to the settings to update and then whatever I was setting as `alfred hotkey` the only way to show it was option+space. Here are some SC using karabiner to show which keys I pressed on my keyboard.
Alfred 2 is working perfectly.
http://imgur.com/a/RiM7t