Remember to cover the basics, that is, what you expected to happen and what in fact did happen. You don't know how to make a good report? See
http://orgmode.org/manual/Feedback.html#Feedback Your bug report will be posted to the Org mailing list. ------------------------------------------------------------------------ >From emacs -Q: M-x org-mode Insert the following: * Test DEADLINE: <2017-10-06 Sat> Place point on timestamp and hit C-c C-c Expected: Timestamp updated to <2017-10-06 Fri> Actual: This is displayed in *Messages*: user-error: ‘C-c C-c’ can do nothing useful here Emacs : GNU Emacs 26.0.60 (build 1, x86_64-apple-darwin17.0.0, NS appkit-1561.00 Version 10.13 (Build 17A365)) of 2017-09-30 Package: Org mode version 9.1.2 (9.1.2-elpaplus @ /Users/aaronjensen/.emacs.d/elpa/26.0/org-plus-contrib-20171004/)