Hello,
In case you were not aware, the dataset "29_Siletti_CerebralCortex.V2_Human_2022_level2" seems to be missing as an option in the cell type analysis.
And when I was doing an analysis yesterday, I think that a different dataset called "36_Siletti_CerebralCortex.Pro_Human_2022_level2" was missing, but the V2 dataset above was there.