The first highlight in all of my books is not syncing to Remnote.

I just installed the plugin (0.0.23) and synced all the highlights. After seeing the issue, I tried syncing all the highlights again, but Remnote is still missing the first highlight from every book I've tested so far.

Start by reproducing the issue with plugin version 0.0.23 by syncing multiple books that each have highlights, then trace the plugin's highlight synchronization flow. Confirm whether the first highlight is consistently omitted and verify that a sync includes every highlight in RemNote.

Written by the indexing model from the issue text.