Dropbox options no longer showing when right clicking in macOS Finder (Mojave)

[SGalbraith]

Similar to the other user who is having this problem on windows, sometime ago (I don't remember when), the dropbox options that appear when you right click a file (of particular use for me was Create Dropbox Share Link) no longer appear. No Dropbox related options under Share either. The app seems to be installed and working correctly, and syncing fine. I've tried deleting and re-installing the app. 

[JOfE]

True, 'relaunching the finder' solves the issue. The dropbox menus reappears. But this is hardly a resolution becasue you have to do this constantly. The menus disappear again. 

[Walter]

If that's indeed the case, you might want to consider rebuilding your Finder's Spotlight index @JOfE. This would fall outside our remit but feel free to give it a go and report back with your results. 

Thanks! 

[Rafe]

Sorry about late reply, the sync status was normal.
The problem was solved at the early of JAN 2020 after update of Dropbox apps and MacOS. I noticed the Dropbox extension studently appear and the share function work.