Remember to cover the basics, that is, what you expected to happen and
what in fact did happen. You don't know how to make a good report? See
https://orgmode.org/manual/Feedback.html#Feedback
Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------
I have created two key bindings for swapping back and forth between org
mode and LaTeX mode. I use C-c s t to activate LaTeX-mode and I use C-c
s o to activate org-mode. The bug arose when I tried to reactivate org
mode.
I was trying at the time to learn how to use org mode to produce Beamer
presentations, so I sent up a file with the following content (contained
between rows of underscore characters (_).):
__________________________________________________
#+TITLE: Presentation with Org-Mode and Beamer
#+SUBTITLE: Particulars
#+AUTHOR: Charles B. Cameron
# COMMENT #+BEAMER_THEME: Rochester [height=20pt]
#+BEAMER_THEME: Rochester [height=20pt]
* Completing the Square (Part 1)
#+ATTR_BEAMER: :options [Lagrange]
\begin{align*}
0 &= a x^2 + b x + c \\
&= a \left( x^2 + \frac{b}{a} x \right) + c \\
&= a \left( x^2 + \frac{b}{a} x + \frac{b^2}{4 a^2} - \frac{b^2}{4 a^2}
\right) +c \\
&= a \left( x + \frac{b}{2a} \right)^2 - \frac{b^2}{4 a} + c
\end{align*}
* Completing the Square (Part 2)
\begin{align*}
0 &= a \left( x + \frac{b}{2a} \right)^2 - \frac{b^2}{4 a} + c \\
\left( x + \frac{b}{2a} \right)^2 &= \frac{1}{a} \left( \frac{b^2}{4a} - c
\right) \\
&= \frac{1}{a} \left( \frac{b^2 - 4ac}{4a} \right) \\
x + \frac{b}{2a} &= \pm \sqrt{\frac{b^2 - 4ac}{4a^2}} \\
x &= -\frac{b}{2a} \pm \frac{\sqrt{b^2 - 4ac}}{2a} \\
x &= \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
\end{align*}
__________________________________________________
The error only seems to arise when I invoke C-c s o with point in
certain positions. When it is in front of this row:
* Completing the Square (Part 1)
I can toggle back and forth with C-c s t and C-c s o without error. But
with point at the end of the file, the error arises when I invoke C-c s
o. As nearly as I can tell, it occurs whenever point is at or following
the character 'a' in this line:
0 &= a x^2 + b x + c \\
and I invoke the C-c s o key binding.
To simplify the file as part of the bug reporting process, I removed
this line:
# COMMENT #+BEAMER_THEME: Rochester [height=20pt]
After this, the error no longer occurred no matter where I placed point.
I had originally inserted this line thinking (incorrectly) that comments
could be indicated by starting a line with
#+COMMENT
This created errors when I tried to output a Beamer slide, so I removed
the + sign, replacing it with a space character, which is how the line
came to exist in the first place.
I have to conclude that the presence of that line is related to the bug.
Maybe you can figure out how that could be.
Sincerely,
Charles B. Cameron
----------------------------------------------------------------------
Emacs : GNU Emacs 31.0.50 (build 7, x86_64-pc-linux-gnu, GTK+ Version 3.24.38,
cairo version 1.16.0)
of 2025-08-04
Package: Org mode version 9.7.11 (release_9.7.11 @
/usr/local/share/emacs/31.0.50/lisp/org/)
current state:
==============
(setq
org-yank-image-file-name-function 'org-yank-image-autogen-filename
org-persist-before-write-hook '(org-element--cache-persist-before-write)
org-html-format-headline-function 'org-html-format-headline-default-function
org-html-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
org-log-into-drawer t
org-latex-format-inlinetask-function
'org-latex-format-inlinetask-default-function
org-agenda-include-diary t
org-latex-to-mathml-convert-command "java -jar %j -unicode -force -df %o %I"
org-speed-command-hook '(org-speed-command-activate
org-babel-speed-command-activate)
org-persist-after-read-hook '(org-element--cache-persist-after-read)
org-confirm-elisp-link-function 'yes-or-no-p
org-latex-format-headline-function 'org-latex-format-headline-default-function
org-latex-format-drawer-function #[514 "\207" [] 3 "\n\n(fn _ CONTENTS)"]
org-mode-hook '(#[nil ((flyspell-mode)) nil] #[nil ((visual-line-mode 1)) nil]
#[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-refile-targets '((org-agenda-files :maxlevel . 1))
org-confirm-shell-link-function 'yes-or-no-p
org-odt-format-headline-function 'org-odt-format-headline-default-function
org-archive-hook '(org-attach-archive-delete-maybe)
org-metaup-hook '(org-babel-load-in-session-maybe)
org-occur-hook '(org-first-headline-recenter)
org-html-format-inlinetask-function
'org-html-format-inlinetask-default-function
org-ascii-format-drawer-function #[771 "%1\207" [] 4 "\n\n(fn NAME CONTENTS
WIDTH)"]
org-bibtex-headline-format-function 'org-bibtex-headline-format-default
org-link-parameters '(("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)
("mu4e" :follow mu4e-org-open :store mu4e-org-store-link)
("attachment" :follow org-attach-follow :complete
org-attach-complete-link)
("id" :follow org-id-open :store org-id-store-link-maybe)
("denote" :follow denote-link-ol-follow :face
denote-get-link-face
:help-echo denote-link-ol-help-echo :complete
denote-link-ol-complete :store denote-link-ol-store
:export
denote-link-ol-export)
("elfeed" :follow elfeed-link-open :store
elfeed-link-store-link)
("nov" :follow nov-org-link-follow :store
nov-org-link-store)
("file+sys") ("file+emacs") ("shell" :follow
org-link--open-shell)
("news" :follow
#[514 "\301\300\302%4Q%2\"\207" ["news" browse-url ":"]
6
"\n\n(fn URL ARG)"]
)
("mailto" :follow
#[514 "\301\300\302%4Q%2\"\207" ["mailto" browse-url
":"] 6
"\n\n(fn URL ARG)"]
)
("https" :follow
#[514 "\301\300\302%4Q%2\"\207" ["https" browse-url
":"] 6
"\n\n(fn URL ARG)"]
)
("http" :follow
#[514 "\301\300\302%4Q%2\"\207" ["http" browse-url ":"]
6
"\n\n(fn URL ARG)"]
)
("ftp" :follow
#[514 "\301\300\302%4Q%2\"\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-novelist-author "Charles B. Cameron"
org-cycle-tab-first-hook '(org-babel-hide-result-toggle-maybe
org-babel-header-arg-expand)
org-todo-keywords '((sequence "TODO(t@/!)" "HOLD(h@/!)" "|" "DONE(d@/!)
OBE(o@/!)"
"CANCELLED(c@/!)")
)
org-agenda-before-write-hook '(org-agenda-add-entry-text)
org-metadown-hook '(org-babel-pop-to-session-maybe)
org-tab-first-hook '(org-babel-hide-result-toggle-maybe
org-babel-header-arg-expand)
org-sort-function 'string-collate-lessp
org--warnings '("org-element--cache: Org parser error in
presentation.org::519. Resetting.\n The error was: (error \"Invalid search
bound (wrong side of point)\")\n Backtrace:\nnil\n Please report this to Org
mode mailing list (M-x org-submit-bug-report)." "org-element--cache: Org parser
error in presentation.org::519. Resetting.\n The error was: (error \"Invalid
search bound (wrong side of point)\")\n Backtrace:\nnil\n Please report this to
Org mode mailing list (M-x org-submit-bug-report)." "org-element--cache: Org
parser error in presentation.org::519. Resetting.\n The error was: (error
\"Invalid search bound (wrong side of point)\")\n Backtrace:\nnil\n Please
report this to Org mode mailing list (M-x org-submit-bug-report).")
org-babel-pre-tangle-hook '(save-buffer)
org-list-indent-offset 2
org-export-before-parsing-hook '(org-attach-expand-links)
org-link-shell-confirm-function 'yes-or-no-p
org-fold-core-isearch-open-function 'org-fold-core--isearch-reveal
outline-isearch-open-invisible-function 'outline-isearch-open-invisible
org-src-mode-hook '(org-src-babel-configure-edit-buffer
org-src-mode-configure-edit-buffer)
org-agenda-span 21
org-odt-preferred-output-format "docx"
org-latex-to-mathml-jar-file "/home/kjambunathan/Downloads/mathtoweb.jar"
org-novelist-author-email "mail@[email protected]"
org-agenda-loop-over-headlines-in-active-region nil
org-agenda-files '("~/org/notes.org" "/home/charlie/org/OrgTutorial.org")
org-list-allow-alphabetical t
org-link-elisp-confirm-function 'yes-or-no-p
org-odt-format-inlinetask-function 'org-odt-format-inlinetask-default-function
org-src-lang-modes '(("beamer" . LaTeX) ("latex" . LaTeX) ("C" . c) ("C++" .
c++)
("asymptote" . asy) ("beamer" . latex) ("calc" .
fundamental)
("cpp" . c++) ("ditaa" . artist) ("desktop" .
conf-desktop)
("dot" . fundamental) ("elisp" . emacs-lisp) ("ocaml" .
tuareg)
("screen" . shell-script) ("sqlite" . sql) ("toml" .
conf-toml)
("shell" . sh) ("ash" . sh) ("sh" . sh) ("bash" . sh)
("jsh" . sh)
("bash2" . sh) ("dash" . sh) ("dtksh" . sh) ("ksh" . sh)
("es" . sh)
("rc" . sh) ("itcsh" . sh) ("tcsh" . sh) ("jcsh" . sh)
("csh" . sh)
("ksh88" . sh) ("oash" . sh) ("pdksh" . sh) ("mksh" . sh)
("posix" . sh) ("wksh" . sh) ("wsh" . sh) ("zsh" . sh)
("rpm" . sh))
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-novelist-automatic-referencing-p t
org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
org-odt-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
)
