Error normalizing Anndata

[Mari123i]

Dear MarioniLab-Team,

I want to normalize some anndata single-cell object. I filter genes with less than 10 cells before using scanpy and the call the "normalize" function of the folloeing code:

https://github.com/theislab/scib/blob/main/scib/preprocessing.py

For some of the matricies it works completely fine but for others I get the following error:

RRuntimeError: Error in h(simpleError(msg, call)) : 
  error in evaluating the argument 'object' in selecting a method for function 'sizeFactors': error in evaluating the argument 'x' in selecting a method for function 'assay': cannot coerce class "integer" to a DataFrame

The matricies are sparse and of dtype float32.

Maybe you could help me with this issue.

Greeting

Mariam