The Better BibTeX transition to Zotero 8 has been rocky, for which I apologize. I think I have addressed all major issues now, a notice of the major changes has been put up at https://retorque.re/zotero-better-bibtex/, and thanks to the wonders of LLM I have a decent changelog going at https://retorque.re/zotero-better-bibtex/changelog/index.html, which I will do my best to keep updated.

Remaining issues are listed under https://github.com/retorquere/zotero-better-bibtex/issues?q=is:issue state:open label:"zotero 8 breakage" ; if you experience a problem not covered by those, please do open an issue.