error:not a sparse matrix when converting h5ad to Seurat

[gmcregis]

Convert("Trans_cis_cell_type_lablled.h5ad", dest = "h5seurat", overwrite = TRUE)
Warning: Unknown file type: h5ad
Warning: 'assay' not set, setting to 'RNA'
Creating h5Seurat file for version 3.1.5.9900
Adding X as data
Adding raw/X as counts
Adding meta.features from raw/var
Adding X_scVI as cell embeddings for scVI
Adding X_umap as cell embeddings for umap
Adding _scvi_extra_categorical_covs as cell embeddings for _scvi_extra_categorical_covs
Error: Not a sparse matrix

I've been getting the error above and looked through other issues but couldn't really find anything that worked for me; I tried editing the h5ad file in python but I'm not super familiar with it so if anyone can help I'd greatly appreciate it!

[AarronLi]

have you ever sovled this problem? i also met the "Erro: Not a sparse matrix".