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
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!