cell_type still 'Unknown' after training with scANVI

[robertzeibich]

I am using the non-neuronal hippocampal cells from the human cell atlas (HCA) as a reference and publicly available non-neuronal and neuronal hippocampal cells as a query.

I used the following approach.

HCA

Publicly available data

cell_type still 'Unknow' after prediction. Would you happen to know why? Is there a better approach annotating my cells using the HCA as a reference?