No cells passed qc throws a metrics error

[LinearParadox]

It seems somehow metrics is being set to none when no cells pass qc:

n_counts: [834.5277709960938, 410984.1875], 2327/4060 passed
n_genes: [121.3244400024414, 11635.00390625], 2162/4060 passed
percent_mito: [0.0, 17.76230812072754], 2041/4060 passed
WARNING: Failed to find lower bound, using min value instead.
percent_ribo: [0.0, 0.009087023325264454], 1720/4060 passed
WARNING: Failed to find lower bound, using min value instead.
percent_hb: [0.0, 0.08680114150047302], 3889/4060 passed
0/4060 pass
No cells passed. Performing simple filtering on counts, genes and mito%
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[18], line 12
      6 sctk.calculate_qc(adata)
      7 metrics = sctk.default_metric_params_df.loc[["n_counts",
      8     "n_genes",
      9     "percent_mito",
     10     "percent_ribo",
     11     "percent_hb"], :]
---> 12 sctk.cellwise_qc(adata)

File [~/miniconda3/envs/scautoqc/lib/python3.9/site-packages/sctk/_pipeline.py:509](https://44.243.199.3:8888/lab/tree/~/miniconda3/envs/scautoqc/lib/python3.9/site-packages/sctk/_pipeline.py#line=508), in cellwise_qc(adata, metrics, cell_qc_key, uns_qc_key, **kwargs)
    504 if adata.obs[cell_qc_key].sum() == 0:
    505     print(
    506         "No cells passed. Performing simple filtering on counts, genes and mito%"
    507     )
    508     adata.obs[cell_qc_key] = (
--> 509         (adata.obs.n_counts >= metrics["n_counts"][0])
    510         & (adata.obs.n_genes >= metrics["n_genes"][0])
    511         & (adata.obs.percent_mito < metrics["percent_mito"][1])
    512     )

TypeError: 'NoneType' object is not subscriptable

[LinearParadox]

As an update, this seems to be tied to the estimation behind rb% threshold being oddly low. I tried toying with the max values as well as setting it to one sided (maximum only), but this doesn't seem to have any effect, the estimate it gets is still very low. (<1%) for max ribo, which leads to no cells passing qc.