I've investigated this a little bit. The difference between these two pages is that on https://www.lcneuro.org/publications you use the "My Publications" collection of Zotero, while on https://www.neuroblox.org/publications you use the lcneuro group collection. Zotero seems to be exporting tags/keywords for the latter but not the former -- or maybe it's a bug on their end if this previously worked, as you said. Definitely not related to the display of the download links though. I've verified this with my own Zotero collections, too, and get the same behavior (no keywords when using My Publications, but the same entry added to a group or "Entire Library" works).

This question is more about Google Drive than BibBase. What you are looking for is a URL that will give you only the file content, no Google Drive "decorations" around it. I'm not sure Google Drive offers such a URL, but I believe at least in the past Dropbox did. My personal recommendation for hosting the bibtex file is actually GitHub. It does provide a "raw" link, is easy to edit from various places, and gives you the additional benefit of version control.

Re. the special characters, can you try this: https://bibbase.userecho.com/helpdesks/2/tickets/92-accents-in-title-dont-render-correctly#comment-328 ?

I guess the one thing I can suggest is to try a different browser. This looks a bit like an issue with your privacy settings in your browser.

Sorry, no, I can't debug it based on a screenshot.

Hi! Could you send me a link to your page so I can take a look?

Thanks. It seems that the Zotero API converts those dates into month names. So unfortunately I think sorting by month won't be possible when using Zotero as your data source.

Could you send me a link to your page where you use BibBase?