I'm really confused / lost on this one. Writing a Query to select Opportunities not of Stage '6 - Closed Won' and it still pulls these records. This is happening with no other picklist values in the StageName field, i am able to sucessfully filter those out if i so choose (the below is of course only filtering out 6 - Closed Won
SELECT Id, StageName, Lead_Producer__c, Account.Overseeing_Advisor__c FROM Opportunity WHERE StageName != '6 - Closed Won'
Stage Name and API are the same