Hi, when columns view is opened with an "%Effort{:}" column, the sum is only correct for the first parent element. Whereas "hours" are propagated up the hierarchy, "days" are reset to zero when going up more than one level in the hierarchy.
Example: * Level 1 ** Level 2 *** Level 3 **** Level 4 :PROPERTIES: :Effort: 2d :END: In columns view (with `# -*- org-time-clocksum-use-effort-durations: t; org-time-clocksum-format: (:days "%dd " :require-days t :hours "%d" :require-hours t :minutes ":%02d" :require-minutes t) -*-`) this only reports correct effort values for Level 4 and Level 3. Level 1 and Level 2 show "0d 0:00", but "2d 0:00" is expected. Details below... Thanks, Björn Emacs : GNU Emacs 24.5.1 (i686-pc-mingw32) of 2015-04-11 on LEG570 Package: Org mode version 9.0 (9.0-elpa @ z:/.emacs.d/elpa/org-20161102/) current state: ============== (setq org-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand) org-link-parameters '(("id" :follow org-id-open) ("rmail" :follow org-rmail-open :store org-rmail-store-link) ("mhe" :follow org-mhe-open :store org-mhe-store-link) ("irc" :follow org-irc-visit :store org-irc-store-link) ("info" :follow org-info-open :export org-info-export :store org-info-store-link) ("gnus" :follow org-gnus-open :store org-gnus-store-link) ("docview" :follow org-docview-open :export org-docview-export :store org-docview-store-link) ("bibtex" :follow org-bibtex-open :store org-bibtex-store-link) ("bbdb" :follow org-bbdb-open :export org-bbdb-export :complete org-bbdb-complete-link :store org-bbdb-store-link) ("w3m" :store org-w3m-store-link) ("file+sys") ("file+emacs") ("ipynb" :follow ein:org-open :export nil) ("doi" :follow org--open-doi-link) ("elisp" :follow org--open-elisp-link) ("file" :complete org-file-complete-link) ("ftp" :follow (lambda (path) (browse-url (concat "ftp:" path)))) ("help" :follow org--open-help-link) ("http" :follow (lambda (path) (browse-url (concat "http:" path)))) ("https" :follow (lambda (path) (browse-url (concat "https:" path)))) ("mailto" :follow (lambda (path) (browse-url (concat "mailto:" path)))) ("message" :follow (lambda (path) (browse-url (concat "message:" path)))) ("news" :follow (lambda (path) (browse-url (concat "news:" path)))) ("shell" :follow org--open-shell-link)) org-archive-hook '(org-attach-archive-delete-maybe) org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers org-cycle-show-empty-lines org-optimize-window-after-visibility-change) org-agenda-before-write-hook '(org-agenda-add-entry-text) org-confirm-babel-evaluate nil org-speed-command-hook '(org-speed-command-default-hook org-babel-speed-command-hook) org-babel-pre-tangle-hook '(save-buffer) org-occur-hook '(org-first-headline-recenter) org-log-done 'note org-metaup-hook '(org-babel-load-in-session-maybe) org-confirm-elisp-link-function 'yes-or-no-p org-clock-out-hook '(org-clock-remove-empty-clock-drawer) org-mode-hook '(#[0 "\300\301\302\303\304$\207" [add-hook change-major-mode-hook org-show-block-all append local] 5 "\n\n(fn)"] org-mode-reftex-setup #[0 "\300\301\302\303\304$\207" [add-hook change-major-mode-hook org-babel-show-result-all append local] 5 "\n\n(fn)"] org-babel-result-hide-spec org-babel-hide-all-hashes turn-on-flyspell turn-on-auto-fill) org-src-preserve-indentation t org-metadown-hook '(org-babel-pop-to-session-maybe) org-startup-indented t org-agenda-files '("~/org/tasks.org") org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer) org-after-todo-state-change-hook '(org-clock-out-if-current) org-babel-tangle-lang-exts '(("python" . "py") ("emacs-lisp" . "el") ("elisp" . "el")) org-confirm-shell-link-function 'yes-or-no-p )