M-x helm-bibtex fails on valid .bib file with error (wrong-type-argument lisp "article")

[abetaha]

After the upgrade to the latest helm-bibtex (v 2.0.0), M-x Helm-bibtex fails on a valid .bib file with the following error:

In 'BibTeX entries' source: 'bibtex-completion-candidates'
(wrong-type-argument lisp "article")

I am using Emacs 29.4 on Mac OS X 15.3.1, and LaTeX and BibTeX succeed using the .bib file with no errors or warnings. Also Emacs bibtex-validate does not show any errors in the .bib file.

Any idea what could be the problem?

[joostkremers]

Can you isolate the entry that causes the problem and post it here? That might be helpful in solving the issue.

[abetaha]

Interestingly any @Article entry causes the issue. I deleted everything from the bib file except the following entry, and got the same error above.

@article{10.1145/129888.129894,
  author =	 {DeWitt, David and Gray, Jim},
  title  =	  {Parallel  Database  Systems: The  Future  of  High
                  Performance Database Systems},
  year =	 1992,
  issue_date =	 {June 1992},
  publisher =	 {Association for Computing Machinery},
  address =	 {New York, NY, USA},
  volume =	 35,
  number =	 6,
  issn =	 {0001-0782},
  url =		 {https://doi.org/10.1145/129888.129894},
  doi =		 {10.1145/129888.129894},
  journal =	 {Commun. ACM},
  month =	 {jun},
  pages =	 {85–98},
  numpages =	 14,
  keywords  =	 {parallel  database  systems, parallelism,  parallel
                  processing systems}
}

[joostkremers]

@tmalsburg I thought that perhaps this is a parsebib.el issue, but this particular entry parses just fine, so there's something else going on, it seems.