The annotation disappear
The annotation goes away
I deleted the annotation, and I converted to comments today, then emptied the recycle bin, and finally used zotfile to rename and move the pdf file. Then my annotation was locked, and when I looked at the same pdf on my other computer, I found that it was normal. So, I tried to restore the annotation data of my first computer by syncing, but after syncing the annotation data mostly disappeared.
My report ID:260431933
I deleted the annotation, and I converted to comments today, then emptied the recycle bin, and finally used zotfile to rename and move the pdf file. Then my annotation was locked, and when I looked at the same pdf on my other computer, I found that it was normal. So, I tried to restore the annotation data of my first computer by syncing, but after syncing the annotation data mostly disappeared.
My report ID:260431933
2. I opened the pdf and found that the annotation was locked and could not be edited
3. I opened the same document in zotero on another computer and found that the annotation here was normal (editable)
4. So, I synchronized the literature. You want to synchronize annotation to an editable state.
5. But most of the annotation data disappeared after synchronization.
You don't say whether the annotations were originally in Zotero and you somehow transferred them to the PDF file or if they were previously in the PDF file and you imported them into Zotero, but it'd have to be one or the other if they were locked in one place and editable in another.
Also, you say you deleted an annotation. If you do that, it's going to disappear everywhere when you sync.