When I re-loaded my org file after killing the buffer (because Org got confused and behaved erratically), this appeared:
⛔ Warning (org-element-cache): org-element--cache: Org parser error in rydberg-jl.org::32516. Resetting. The error was: (wrong-type-argument integer-or-marker-p nil) Backtrace: nil Please report this to Org mode mailing list (M-x org-submit-bug-report). Emacs : GNU Emacs 29.1 (build 1, aarch64-apple-darwin21.6.0, NS appkit-2113.60 Version 12.6.6 (Build 21G646)) of 2023-08-17 Package: Org mode version 9.6.8 ( @ /Users/dirkjimtheis/.emacs.d/elpa/org-9.6.8/) current state: ============== (setq org-link-elisp-confirm-function 'yes-or-no-p org-bibtex-headline-format-function #[257 "\300 \236A\207" [:title] 3 "\n\n(fn ENTRY)"] org-persist-after-read-hook '(org-element--cache-persist-after-read) org-export-before-parsing-hook '(org-attach-expand-links) org-cycle-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand) org-archive-hook '(org-attach-archive-delete-maybe) org-odt-format-inlinetask-function 'org-odt-format-inlinetask-default-function org-ascii-format-drawer-function #[771 " \207" [] 4 "\n\n(fn NAME CONTENTS WIDTH)"] org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-show-empty-lines org-cycle-optimize-window-after-visibility-change org-cycle-display-inline-images) org-persist-before-read-hook '(org-element--cache-persist-before-read) org-mode-hook '(#[0 "\301\211 \207" [imenu-create-index-function org-imenu-get-tree] 2] #[0 "\300\301\302\303\304$\207" [add-hook change-major-mode-hook org-fold-show-all append local] 5] #[0 "\300\301\302\303\304$\207" [add-hook change-major-mode-hook org-babel-show-result-all append local] 5] org-babel-result-hide-spec org-babel-hide-all-hashes) org-babel-load-languages '((C . t) (julia . t) (latex . t)) org-latex-format-drawer-function #[514 "\207" [] 3 "\n\n(fn _ CONTENTS)"] org-latex-format-headline-function 'org-latex-format-headline-default-function org-confirm-shell-link-function 'yes-or-no-p org-html-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"] outline-isearch-open-invisible-function 'outline-isearch-open-invisible org-odt-format-headline-function 'org-odt-format-headline-default-function org-agenda-before-write-hook '(org-agenda-add-entry-text) org-babel-tangle-lang-exts '(("latex" . "tex") ("julia" . "jl") ("D" . "d") ("C++" . "cpp") ("emacs-lisp" . "el") ("elisp" . "el")) org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer) org-confirm-elisp-link-function 'yes-or-no-p org-structure-template-alist '(("a" . "EXPORT ascii") ("c" . "CENTER") ("C" . "COMMENT") ("e" . "EXAMPLE") ("E" . "EXPORT") ("h" . "EXPORT html") ("l" . "EXPORT latex") ("q" . "QUOTE") ("s" . "SRC") ("v" . "VERSE")) org-speed-command-hook '(org-speed-command-activate org-babel-speed-command-activate) org-html-format-inlinetask-function 'org-html-format-inlinetask-default-function org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default org-odt-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"] org-fold-core-isearch-open-function 'org-fold--isearch-reveal org-latex-format-inlinetask-function 'org-latex-format-inlinetask-default-function org-persist-before-write-hook '(org-element--cache-persist-before-write) org-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand) org-link-shell-confirm-function 'yes-or-no-p org-babel-pre-tangle-hook '(save-buffer) org-agenda-loop-over-headlines-in-active-region nil org-occur-hook '(org-first-headline-recenter) org-metadown-hook '(org-babel-pop-to-session-maybe) org-link-parameters '(("attachment" :follow org-attach-follow :complete org-attach-complete-link) ("id" :follow org-id-open) ("eww" :follow org-eww-open :store org-eww-store-link) ("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 :export org-irc-export) ("info" :follow org-info-open :export org-info-export :store org-info-store-link :insert-description org-info-description-as-command) ("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) ("doi" :follow org-link-doi-open :export org-link-doi-export) ("file+sys") ("file+emacs") ("shell" :follow org-link--open-shell) ("news" :follow #[514 "\301\300\302 Q \"\207" ["news" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("mailto" :follow #[514 "\301\300\302 Q \"\207" ["mailto" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("https" :follow #[514 "\301\300\302 Q \"\207" ["https" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("http" :follow #[514 "\301\300\302 Q \"\207" ["http" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("ftp" :follow #[514 "\301\300\302 Q \"\207" ["ftp" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("help" :follow org-link--open-help :store org-link--store-help) ("file" :complete org-link-complete-file) ("elisp" :follow org-link--open-elisp)) org-html-format-headline-function 'org-html-format-headline-default-function org-metaup-hook '(org-babel-load-in-session-maybe) )