Hi there, First, thanks for maintaining this awesome tool.
In "ob-octave.el" line 94, instead of (format "print -dpng %S\nans=%S" gfx-file gfx-file)) should be (format "print -dpng %s" gfx-file)) otherwise, the figure is not saved (and thus an empty inline figure will appear). I already test it with MATLAB and can confirm it. By the way, it is my first bug report/fix for org-mode, so apologies if I miss something in my report. Best wishes, Shervin Emacs : GNU Emacs 29.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.33, cairo version 1.16.0) of 2023-08-16 Package: Org mode version 9.7-pre (release_9.6.7-662-gb89bc5 @ /home/ssafavi/.ssemacs.d/classicemacs/straight/build/org/) current state: ============== (setq org-archive-location "archive/%s_archive::" org-noter--doc-goto-location-hook '(org-noter-djvu--goto-location org-noter-nov--goto-location org-noter-pdf--goto-location) org-link-elisp-confirm-function nil org-ref-cite-onclick-function '(closure (t) (_) (org-ref-citation-hydra/body)) org-bibtex-headline-format-function 'org-bibtex-headline-format-default org-export-with-sub-superscripts '{} org-ref-insert-cite-function 'org-ref-cite-insert-ivy org-log-done 'time org-babel-after-execute-hook '(scimax-align-result-table org-display-inline-images scimax-rm-backslashes scimax-jupyter-ansi) org-agenda-skip-scheduled-if-done t org-persist-after-read-hook '(org-element--cache-persist-after-read) org-ctrl-c-ctrl-c-hook '(scimax-org-image-toggle-image-CcCc scimax-radio-CcCc) org-link-make-description-function '(lambda (link desc) (plist-get org-store-link-plist :description)) org-ref-open-pdf-function 'my/org-ref-open-pdf-at-point org-export-before-parsing-hook '(org-attach-expand-links org-babel-jupyter-strip-ansi-escapes) org-cycle-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand) org-latex-title-command "" org-ref-bibtex-assoc-pdf-with-entry-move-function 'rename-file org-archive-hook '(org-attach-archive-delete-maybe) org-speed-commands '(("Outline Navigation") ("n" org-speed-move-safe 'org-next-visible-heading) ("p" org-speed-move-safe 'org-previous-visible-heading) ("f" org-speed-move-safe 'org-forward-heading-same-level) ("b" org-speed-move-safe 'org-backward-heading-same-level) ("F" . org-next-block) ("B" . org-previous-block) ("u" org-speed-move-safe 'outline-up-heading) ("j" . org-goto) ("g" org-refile '(4)) ("Outline Visibility") ("c" . org-cycle) ("C" . org-shifttab) (" " . org-display-outline-path) ("s" . org-toggle-narrow-to-subtree) ("k" . org-cut-subtree) ("=" . org-columns) ("Outline Structure Editing") ("U" . org-metaup) ("D" . org-metadown) ("r" . org-metaright) ("l" . org-metaleft) ("R" . org-shiftmetaright) ("L" . org-shiftmetaleft) ("i" progn (forward-char 1) (call-interactively 'org-insert-heading-respect-content)) ("^" . org-sort) ("w" . org-refile) ("a" . org-archive-subtree-default-with-confirmation) ("@" . org-mark-subtree) ("#" . org-toggle-comment) ("Clock Commands") ("I" . org-clock-in) ("O" . org-clock-out) ("Meta Data Editing") ("t" . org-todo) ("," org-priority) ("0" org-priority 32) ("1" org-priority 65) ("2" org-priority 66) ("3" org-priority 67) (":" . org-set-tags-command) ("e" . org-set-effort) ("E" . org-inc-effort) ("W" lambda (m) (interactive "sMinutes before warning: ") (org-entry-put (point) "APPT_WARNTIME" m)) ("Agenda Views etc") ("v" . org-agenda) ("/" . org-sparse-tree) ("Misc") ("o" . org-open-at-point) ("?" . org-speed-command-help) ("<" org-agenda-set-restriction-lock 'subtree) (">" org-agenda-remove-restriction-lock) ("P" . org-set-property) ("d" . org-deadline) ("m" . org-mark-subtree) ("S" . widen) ("k" . scimax-org-kill-subtree) ("q" . scimax-avy-org-headline) ("T" . org-teleport)) org-noter--pretty-print-location-for-title-hook '(org-noter-djvu--pretty-print-location org-noter-nov--pretty-print-location org-noter-pdf--pretty-print-location-for-title)