5
Quest, I had the same thing in the beginning, new Blocks were assigned ONLY to Webmasters & Registered Users groups but now they are assigned to everything (except Anonymous users groups)
I don't know why's that, I didn't change anything or something, I just have a lot of groups and blocks (and that's why it's frustrating for me to manually assign Block to a certain groups)
I really hope someone could help me with this issue, or at least explain me how can I adjust that whenever I create a new Block it will be assigned with no groups at all? (or with Webmasters & Registered Users groups as used to be)