While I don't have a fix for the root issue, I did have a chance to create a lint for LOGBOOK duplicates, as you suggested. It can be found here: https://github.com/jeffkowalski/prelude/commit/f44b6041730469ba2094849b60d301cd94a5bed1#diff-3de035eea502a119bcdd40f4adc3d6108d4f337f827358cb2361623525682042R1199-R1251 Also below: (defun jeff/org-logbook-retrieve-timestamps (beg end) "Retrieve timestamp of all state-change entries between BEG and END." (save-excursion (let* ((reversed org-log-states-order-reversed) (search (if reversed 're-search-forward 're-search-backward)) (limit (if reversed end (point))) (re (format "^[ \t]*-[ \t]+\\(?:State \"%s\"\s+from\s+\"%s\".*%s%s\\)" org-todo-regexp org-todo-regexp org-ts-regexp-inactive (let ((value (cdr (assq 'done org-log-note-headings)))) (if (not value) "" (concat "\\|" (org-replace-escapes (regexp-quote value) `(("%d" . ,org-ts-regexp-inactive) ("%D" . ,org-ts-regexp) ("%s" . "\"\\S-+\"") ("%S" . "\"\\S-+\"") ("%t" . ,org-ts-regexp-inactive) ("%T" . ,org-ts-regexp) ("%u" . ".*?") ("%U" . ".*?")))))))) log-entries) (goto-char (if reversed beg end)) (while (funcall search re limit t) (push (match-string-no-properties 3) log-entries)) log-entries))) (defun org-lint-duplicate-logbook-timestamps (ast) "Report LOGBOOK entries with duplicate timestamp" (org-element-map ast 'drawer (lambda (d) (when (equal (org-element-property :drawer-name d) "LOGBOOK") (let* ((beg (org-element-property :contents-begin d)) (end (org-element-property :contents-end d)) (orig (jeff/org-logbook-retrieve-timestamps beg end)) (uniq (cl-remove-duplicates orig :test (lambda (x y) (or (null y) (equal x y))) :from-end t)) (diff (- (length orig) (length uniq)))) (unless (zerop diff) (list (org-element-property :begin d) (format "LOGBOOK has %d entries with duplicate timestamp" diff)))))))) (add-to-list 'org-lint--checkers (make-org-lint-checker :name 'duplicate-logbook-timestamps :description "Report LOGBOOK entries with duplicate timestamp" :categories '(properties))) On Thu, Jun 17, 2021 at 6:16 AM Gustavo Barros wrote: > Thanks for confirming and for the habits info. So that's what was > happening with my consistency graphs. I had indeed been noticing they > felt "off", but I eventually reverted to 9.4.4 because of the duplicate > entries and forgot about it. It seems then that this got solved for me > not by the reverting itself but by me removing the duplicate entries in > the LOGBOOK. > > Would clocking reports be affected too? (I'm not personally an user of > clocking, so I don't really know). > > Perhaps a "lint" for LOGBOOK duplicates would be a good idea alongside > with the fix, so that people could go about fixing their data with a > little more convenience? > > Best regards, > Gustavo. >