When going through the 'create content -> ult game' link, no defaults are available via the args; so the form should not assume default values and disable other fields. (This field manipulation is done to simplify the creation process when using the ULT 'add game' links from inside a given league/division; but it prevents the create content approach from working.)

Either the fields should not be disabled, or the 'create content' link should be disabled and a message provided redirecting to the 'ULT' way of doing things.