When attempting to open the attached (anonymised) message with mm-text-html-renderer set to `shr`, I get this bracktrace:

--8<---------------cut here---------------start------------->8---
Debugger entered--Lisp error: (error "Specified window is not displaying the current buffer")
  shr-indent()
  shr-fill-line()
  shr-fill-lines(13724 15455)
  shr-insert-document((html ((xmlns:o . .))))
  mm-shr((#<buffer  *mm*-655965> ("text/html" (charset . "Windows-1252")) quoted-printable nil nil nil nil nil))
  mm-inline-text-html((#<buffer  *mm*-655965> ("text/html" (charset . "Windows-1252")) quoted-printable nil nil nil nil nil))
  mm-display-inline((#<buffer  *mm*-655965> ("text/html" (charset . "Windows-1252")) quoted-printable nil nil nil nil nil))
  mm-display-part((#<buffer  *mm*-655965> ("text/html" (charset . "Windows-1252")) quoted-printable nil nil nil nil nil))
  gnus-mime-display-alternative(((#<buffer  *mm*-410985> ("text/plain" (charset . "Windows-1252")) quoted-printable nil ("inline") nil nil nil) (#<buffer  *mm*-655965> ("text/html" (charset . "Windows-1252")) quoted-printable nil nil nil nil nil)) nil nil 1)
  gnus-mime-display-part((#("multipart/alternative" ...)))
  gnus-display-mime(nil)
  #f(compiled-function (&optional ihandles) #<bytecode -0xcb4ad9361861f2a>)()
  gnus-article-prepare-display()
  mu4e--view-render-buffer((:path ...))
  mu4e-view((:path ...))
  mu4e~headers-view-handler((:path ...))
--8<---------------cut here---------------end--------------->8---

I've been asked here:

https://github.com/djcb/mu/issues/2747#issuecomment-2305245669

to report this as an Emacs bug/incompatibility.

I'm using Emacs build 3d1d4f109ed4115256a08c74eeb704259d91c9f4 (21 August 2024).

Best wishes,

--
Rob Stewart
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