Digikams export to Dropbox feature seems to rely on the Dropbox v1 API which is deprecated since June 2016 and will be shut down end of June 2017. When authorizing digikam to export to Dropbox, Dropbox will display a warning to the user that API v1 is soon to be shut down. Doing only a quick search I have not found any issue covering this topic. So I would like to make you aware that either a transition to the v2 API or the removal of the Dropbox export feature will be necessary. https://blogs.dropbox.com/developers/2016/06/api-v1-deprecated/
I can confirm this. Connecting to dropbox shows that it stops at 28. June 2017.
Git commit acae55991a4f51e727c09609216cfff85697724a by Maik Qualmann. Committed on 07/01/2018 at 08:33. Pushed by mqualmann into branch 'master'. dropbox tool ported to API V2 and OAuth2 FIXED-IN: 5.8.0 M +2 -1 NEWS M +3 -9 dropbox/dbalbum.cpp M +115 -282 dropbox/dbtalker.cpp M +30 -41 dropbox/dbtalker.h M +1 -12 dropbox/dbwidget.cpp M +44 -88 dropbox/dbwindow.cpp M +2 -8 dropbox/dbwindow.h M +2 -2 dropbox/mpform.cpp M +3 -3 dropbox/plugin_dropbox.cpp https://commits.kde.org/kipi-plugins/acae55991a4f51e727c09609216cfff85697724a
*** Bug 402993 has been marked as a duplicate of this bug. ***