I've not been able to figure out exactly what the pattern is, but if I select multiple items (which have linked PDFs) and right-click and choose Add Note from Annotations, only some of them get notes. I think that's not the correct behavior.

It may have something to do with some of the attached linked PDFs not containing any annotations, and for those items, I wouldn't expect a note to be added, but it seems that if my selection contains any item without annotations, it breaks something.

I can only consistently get notes from annotations by selecting single items and selecting the command, or choosing only multiple items that I know to have annotations and running the command.

What I'd like to be able to do is be sure that for every item in my collection that does have annotations in the PDF, there is a note that contains the up-to-date annotations. I thought I could do that by selecting all, then right clicking and choosing Add Note from Annotations. I'm trying to integrate with Obsidian through the Better BibTex extension for Zotero, and the BibNotes plug-in for Obsidian, but not being able to easily extract annotations into notes in Zotero is stopping me.