When I installed Accordance, I had 4 highlight files synced to Dropbox. From the desktop, I added and synced a new highlight file (and confirmed it's existence on Dropbox).
When I went back to the Android version, the new highlights file was not available for selection in settings. I tried the following:
1) Selected Sync Dropbox - didn't help
2) Unlinked and relinked dropbox - didn't help
3) Went into apps settings and cleared cache - didn't help
4) Went into apps settings and cleared data - this worked, but of course I had to set everything up from scratch and download all of my content again.
Edit: The weird thing is that after going through all of this on my phone (Galxy S10), I went over to my Tablet (Fire HD) and everything worked correctly after syncing. So you may have a hard time recreating this.
Edited by Cnthetford, 13 September 2019 - 02:18 PM.