Hi,
Please be aware that the standard courtesies (Hi, Thanks, ...) are appreciated in this group.
When were the bug-code smell issues raised? We've been tuning our rules, and have changed the types of some of them. I'm willing to bet the bug-code smells were raised with earlier versions of the analyzers where the rules were classified as bug rules. Subsequently, you upgraded to analyzer versions where those rules has been reclassified as code smells, and all new issues raised by those rules are consequently classed as code smells. But old issues raised by the rules are not re-classified.
Ann