My fault. The reason seems to be a doom emacs advice. https://github.com/doomemacs/doomemacs/issues/7222 https://github.com/doomemacs/doomemacs/blob/07fca786154551f90f36535bfb21f8ca4abd5027/modules/lang/org/config.el#L866
On Thu, Jun 22, 2023 at 10:12:50AM +0000, Ihor Radchenko wrote: > Eduardo Suarez <esua...@itccanarias.org> writes: > > > When loading the following file, I get: > > > > 'File mode specification error: (error Invalid base64 data)' > > ... > > It also happens with 'begin_example'. > > May you please provide more detailed steps to reproduce, starting from > emacs -Q? See https://orgmode.org/manual/Feedback.html#Feedback
