I have this same problem, but with every PDF or Skim file I open in Zotero.
The "Import Annotations" option is always greyed out. I have never been able to use it. For a while, I just gave up. But it's really making Zotero hard to use. I have to go back and re-highlight my documents if I want to open them in Zotero and it's starting to drive me nuts.
I reached out a few months ago about this problem, but nothing worked and I gave up. Hoping to have better luck the second time around.
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The "Import Annotations" option is always greyed out. I have never been able to use it. For a while, I just gave up. But it's really making Zotero hard to use. I have to go back and re-highlight my documents if I want to open them in Zotero and it's starting to drive me nuts.
I reached out a few months ago about this problem, but nothing worked and I gave up. Hoping to have better luck the second time around.