Hello @LindsayP35 ,
It looks like those two Subject A/B campaigns were made and sent during a period between December 2019 and January 2020 when there was a glitch affecting Subject A/B tests specifically. After speaking with the higher level technical team these two particular SAB campaigns won't be able to be added to any folders. However, SAB campaigns you make from then on should be able to be filed without issue.
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