I was suspicious of your feature table:
qiime tools validate v3-v4table-dada2.qza
The results:
Result v3-v4table-dada2.qza does not appear to be valid at level=max:
  Unrecognized files:
    - 'data/Ofeature-table.biom'
  Missing files:
    - 'data/feature-table.biom'
Uh oh! Looks like someone was tampering with the contents of their QZA 
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You will need to regenerate that file in order to guarantee its integrity (there are other ways around this, but they won't guarantee integrity). In the future, I would recommend exporting or extracting, rather than mutating the contents of the file directly. Keep us posted!