Some missing tags not being reported

[iimog]

I used checkhelper::find_missing_tags() to find missing \value tags in the Rd files of gggenomes after CRAN rejected the package, because of this reason.
Some missing \value tags were reported by checkhelper and I fixed all of them. I re-checked until I saw the message:

Good! There is no missing or empty return value for exported functions
Good! There is no missing `@export` or `@noRd` in your documentation

After re-submitting to CRAN, we were rejected again, because there were still \value tags missing. I tried both the release version of checkhelper and the latest development version, both don't report the missing \value tags.
To reproduce, you can run:

git clone --depth 1 https://github.com/thackl/gggenomes -b missing-value-tags
cd gggenomes
R -s -e "mt <- checkhelper::find_missing_tags()"

and you will see

ℹ Loading gggenomes
Loading required package: ggplot2
Good! There is no missing or empty return value for exported functions
Good! There is no missing `@export` or `@noRd` in your documentation
ℹ Loading gggenomes

However, CRAN reports the following:

Missing Rd-tags:
      add_seqs.Rd: \value
      add_tracks.Rd: \value
      as_links.Rd: \value
      check_strand.Rd: \value
      dim.gggenomes_layout.Rd: \value
      drop_layout.Rd: \value
      flip.Rd: \value
      ggplot.gggenomes_layout.Rd: \value
      layout.Rd: \value
      strand_chr.Rd: \value
      strand_int.Rd: \value
      strand_lgl.Rd: \value
      track_ids.Rd: \value

And indeed, the add_seqs.Rd file, does not contain a \value tag. And so do the other files, reported by CRAN. Do you have an explanation, why these cases are not reported by checkhelper?

Sidenote: this code: https://stat.ethz.ch/pipermail/r-package-devel/2021q2/007106.html did report some, but also not all the remaining missing tags.