I got similar result:


#+begin_example
Text content at position 33755:


There is an overlay here:
 From 33755 to 36387
  evaporate            t
  invisible            org-fold-outline
  isearch-open-invisible delete-overlay
  org-invisible        org-fold-outline
  priority             5


There are text properties here:
  face                 org-level-2
  fontified            t
  isearch-open-invisible org-fold-core--isearch-show
  isearch-open-invisible-temporary org-fold-core--isearch-show-temporary
  jinx--pending        t

#+end_example

#+begin_example
Text content at position 36387:


There are text properties here:
  fontified            t
  isearch-open-invisible org-fold-core--isearch-show
  isearch-open-invisible-temporary org-fold-core--isearch-show-temporary

#+end_example

I confirmed I have NOT set `org-fold-core-style` to 'overlay.

Seems I have same reason with Michael.

Michael Dauer <mick.dauer@gmail.com> writes:

> Got another observation:
> Text content at position 30248:
>
> There is an overlay here:
>  From 30248 to 30442
>   evaporate            t
>   invisible            org-fold-outline
>   isearch-open-invisible delete-overlay
>   org-invisible        org-fold-outline
>   priority             5
>
> There are text properties here:
>   fontified            t
>   isearch-open-invisible org-fold-core--isearch-show
>   isearch-open-invisible-temporary org-fold-core--isearch-show-temporary
>
> Am Sa., 6. Mai 2023 um 08:24 Uhr schrieb Ihor Radchenko <yantar92@posteo.net>:
>
>  "Christopher M. Miles" <numbchild@gmail.com> writes:
>
>  > I meet an unfold-able headline now. Then I record a video to show this
>  > unfold-able headline. I executed command "describe-text-properties".
>
>  Please put the cursor right before the fold ("..."), execute M-x
>  describe-text-properties and share the properties description text.
>  You don't need video to share the property details buffer contents.
>
>  -- 
>  Ihor Radchenko // yantar92,
>  Org mode contributor,
>  Learn more about Org mode at <https://orgmode.org/>.
>  Support Org development at <https://liberapay.com/org-mode>,
>  or support my work at <https://liberapay.com/yantar92>


-- 

[ stardiviner ]
I try to make every word tell the meaning that I want to express without misunderstanding.

Blog: https://stardiviner.github.io/
IRC(libera.chat, freenode): stardiviner, Matrix: stardiviner
GPG: F09F650D7D674819892591401B5DF1C95AE89AC3