Hi,
I am using the most recent elpa version of org 9.4.5 (9.4.5-93-gbc857b-elpa @ /home/garjola/.emacs.d/elpa/org-20210510/) with emacs master branch. Since updating org yesterday, when I use a timestamp like ,---- | <2021-05-17 Mon 10:00-11:00> `---- building the agenda fails with this backtrace: ,---- | Debugger entered--Lisp error: (error "Invalid duration format: | #(\"10:00-11:00\" 0 5 (font...") | | error("Invalid duration format: %S" #("10:00-11:00" 0 11 (face | org-date keymap (keymap (follow-link . mouse-face) (mouse-3 . | org-find-file-at-mouse) (mouse-2 . org-open-at-mouse)) mouse-face | highlight wrap-prefix #(" " 0 2 (face org-indent)) line-prefix #(" " | 0 2 (face org-indent)) org-category "work" fontified t))) | | org-duration-to-minutes(#("10:00-11:00" 0 11 (face org-date keymap | (keymap (follow-link . mouse-face) (mouse-3 . org-find-file-at-mouse) | (mouse-2 . org-open-at-mouse)) mouse-face highlight wrap-prefix #(" " | 0 2 (face org-indent)) line-prefix #(" " 0 2 (face org-indent)) | org-category "work" fontified t))) | | org-agenda-format-item(nil #("Planning | ..." 0 68 (face org-level-1 wrap-prefix #("* " 0 2 (face org-indent)) | line-prefix "" org-category "work" fontified t) 68 77 (keymap (keymap | (follow-link . mouse-face) (mouse-3 . org-find-file-at-mouse) (mouse-2 | . org-open-at-mouse)) mouse-face highlight face (org-tag org-level-1) | wrap-prefix #("* " 0 2 (face org-indent)) line-prefix "" org-category | "work" fontified t) 77 78 (rear-nonsticky (mouse-face highlight keymap | invisible intangible help-echo org-linked-text htmlize-link) keymap | (keymap (follow-link . mouse-face) (mouse-3 . org-find-file-at-mouse) | (mouse-2 . org-open-at-mouse)) mouse-face highlight face (org-tag | org-level-1) wrap-prefix #("* " 0 2 (face org-indent)) line-prefix "" | org-category "work" fontified t)) " " "work" (#("work" 0 4 (inherited | t)) "planning") #("<2021-05-17 Mon 10:00-11:00>" 0 1 (face | (rainbow-delimiters-depth-1-face org-date) keymap (keymap (follow-link | . mouse-face) (mouse-3 . org-find-file-at-mouse) (mouse-2 . | org-open-at-mouse)) mouse-face highlight wrap-prefix #(" " 0 2 (face | org-indent)) line-prefix #(" " 0 2 (face org-indent)) org-category | "work" fontified t) 1 27 (face org-date keymap (keymap (follow-link . | mouse-face) (mouse-3 . org-find-file-at-mouse) (mouse-2 . | org-open-at-mouse)) mouse-face highlight wrap-prefix #(" " 0 2 (face | org-indent)) line-prefix #(" " 0 2 (face org-indent)) org-category | "work" fontified t) 27 28 (face (rainbow-delimiters-depth-1-face | org-date) keymap (keymap (follow-link . mouse-face) (mouse-3 . | org-find-file-at-mouse) (mouse-2 . org-open-at-mouse)) mouse-face | highlight wrap-prefix #(" " 0 2 (face org-indent)) line-prefix #(" " | 0 2 (face org-indent)) org-category "work" rear-nonsticky (mouse-face | highlight keymap invisible intangible help-echo org-linked-text | htmlize-link) fontified t)) | "<\\([[:digit:]]\\{4\\}-[[:digit:]]\\{2\\}-[[:digit:]]\\{..." nil) | | org-agenda-get-timestamps(nil) `---- Does this ring a bell to somebody? I have been using timestamps like this for a while without problems. I have checked the manual and I still see this kind of timestamps in the corresponding section. Thank you. G. --