Example window not rendering characters correct

[chmadk9-lang]

Steps to reproduce

1. Recieve an email with nordic characters
2. show the email in the example window

Expected behavior

Show the correct characters. Its somehow wrong in the example window. But not in the body window

Actual behavior

The characters in the example windows is not rendered correct.

Mail app version

5.6.5

Nextcloud version

AIO 32.0.2

Mailserver or service

Stalwart

Operating system

Ubuntu Docker

PHP engine version

None

Nextcloud memory caching

No response

Web server

None

Database

None

Additional info

Running on AIO

[GretaD]

I cannot reproduce this one. Did this start showing after an upgrade? Did you notice it before?

[chmadk9-lang]

I just tried using both Outlook and IOS mail as the sender.

The Mail from Outlook renders correct. But the one from IOS mail renders incorrect.
The Outlook sends as HTMl at this renders correct.
The IOS mail sends as plain text.
Received: from smtpclient.apple (unknown [17.57.152.38])
by p00-icloudmta-asmtp-us-west-2a-20-percent-1 (Postfix) with ESMTPSA id 35D2C1800146
for dm@hostit.dk; Mon, 29 Dec 2025 09:32:57 +0000 (UTC)
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

The mail renders correctly in the full field. But not in the Preview.

[chmadk9-lang]

I cannot reproduce this one. Did this start showing after an upgrade? Did you notice it before?

And im trying to setup this with my current mail solutions. As a one for all system.