Hello, everyone, I have some try, when a repeat Schedule with deadline, change TODO to DONE, will produce " :LOGBOOK: - State "CANCELLED" from "TODO" [2016-12-05 Mon 23:09] \\ " I think maybe the "\\" is the source of problem, but for I'm new to programming and org-mode, I don't know how to test it, could anyone test it and find problem source ? At 2016-12-06 20:35:28, "ëÏþΰ" wrote: I use the spacemacs, in org-mode 9£¬under TODO item£¬I set "SCHEDULED: <2016-12-06 Tue 10:00-17:00 +1d> DEADLINE: <2016-12-09 Fri 18:00 -2d>"£¬press t , Done£¬and the 'SCHEDULED:' is disapear, only DEADLINE: <2016-12-09 Fri 18:00 -2d>£¬I don't know why ?Anyone meet the problem ? when I try emacs -Q from terminal, used or-mode 8, all works well, maybe it's a bug for org-mode 9 ?