Can HQ change my event's multiplier after the event?
Yes. KBN World HQ can set a lower multiplier or reject an event (×0) if it did not meet standards. Overrides can only lower, every change is audited and rankings recalculate immediately. Multiplier overrides.
Related questions
Answers follow the published KBN rules. The verify page is the authority for any licence or certificate, and where the rules do not cover a case, the Ranking Committee decides. Helpful counters on this demo site started from sample values.