Over the weekend, I updated to version 10.4.2.1. I had been syncing to my Dropbox account as well, and made sure that was set up correctly. But when I tried to highlight, the highlight styles were set to the old yellow = Important, with no highlights anywhere to be found!
To try to correct the problem, I synced from my iPhone, which still had its highlights intact. But instead, Accordance overwrote my phone with the empty highlights file.
Is there any way to recover these? I've tried restoring old versions of the My Highlights folder in Dropbox but it doesn't seem to have any effect.