[Users] Claws Mail 4.3.0 fancy plugin: only black window at message detail

[Franta Hanzlík]

Hi all, I have Claws Mail 4.3.0 on Fedora 41, about all available plugins 
installed (list below).
Problem: selecting HTML mail part, at message detail place is only black 
rectangle. And claws mail stderr on terminal display:

(claws-mail:3960574): GLib-GObject-CRITICAL **: 12:57:23.659: ../gobject/gsignal.c:2532: signal 'resource-request-starting' is invalid for instance '0x55709db8a470' of type 'WebKitWebView'

(claws-mail:3960574): GLib-GObject-CRITICAL **: 12:57:23.659: ../gobject/gsignal.c:2532: signal 'resource-load-failed' is invalid for instance '0x55709db8a470' of type 'WebKitWebView'

Can anyone advise where the problem could be?

One possibility that comes to my mind (but I don't know it in depth)
 - could it be some kind of library incompatibility?

Because at Configuration --> Plugins... --> Fancy HTML Viewer says:
"This plugin renders HTML mail using the WebKit 2.45.91 library."

but when I list my installed webkit packages, they are with 
a slightly higher version of the webkit:

# rpm -qa|grep '^webkit'|sort
webkit2gtk4.0-2.46.1-2.fc41.x86_64
webkit2gtk4.0-devel-2.46.1-2.fc41.x86_64
webkit2gtk4.1-2.46.3-1.fc41.x86_64
webkitgtk6.0-2.46.3-1.fc41.x86_64


Installed Claws mail and its plugins version:

claws-mail-4.3.0-6.fc41.x86_64
claws-mail-plugins-4.3.0-6.fc41.x86_64
claws-mail-plugins-acpi-notifier-4.3.0-6.fc41.x86_64
claws-mail-plugins-address-keeper-4.3.0-6.fc41.x86_64
claws-mail-plugins-archive-4.3.0-6.fc41.x86_64
claws-mail-plugins-attachwarner-4.3.0-6.fc41.x86_64
claws-mail-plugins-att-remover-4.3.0-6.fc41.x86_64
claws-mail-plugins-bogofilter-4.3.0-6.fc41.x86_64
claws-mail-plugins-bsfilter-4.3.0-6.fc41.x86_64
claws-mail-plugins-clamd-4.3.0-6.fc41.x86_64
claws-mail-plugins-fancy-4.3.0-6.fc41.x86_64
claws-mail-plugins-fetchinfo-4.3.0-6.fc41.x86_64
claws-mail-plugins-keyword_warner-4.3.0-6.fc41.x86_64
claws-mail-plugins-libravatar-4.3.0-6.fc41.x86_64
claws-mail-plugins-litehtml-viewer-4.3.0-6.fc41.x86_64
claws-mail-plugins-mailmbox-4.3.0-6.fc41.x86_64
claws-mail-plugins-managesieve-4.3.0-6.fc41.x86_64
claws-mail-plugins-newmail-4.3.0-6.fc41.x86_64
claws-mail-plugins-notification-4.3.0-6.fc41.x86_64
claws-mail-plugins-pdf-viewer-4.3.0-6.fc41.x86_64
claws-mail-plugins-perl-4.3.0-6.fc41.x86_64
claws-mail-plugins-pgp-4.3.0-6.fc41.x86_64
claws-mail-plugins-python-4.3.0-6.fc41.x86_64
claws-mail-plugins-rssyl-4.3.0-6.fc41.x86_64
claws-mail-plugins-smime-4.3.0-6.fc41.x86_64
claws-mail-plugins-spamassassin-4.3.0-6.fc41.x86_64
claws-mail-plugins-spam-report-4.3.0-6.fc41.x86_64
claws-mail-plugins-tnef-4.3.0-6.fc41.x86_64
claws-mail-plugins-vcalendar-4.3.0-6.fc41.x86_64

System Information
GTK 3.24.43 / GLib 2.82.2
Locale: en_US.utf8 (charset: UTF-8)
Operating System: Linux 6.11.6-300.fc41.x86_64 (x86_64)
-- 
TIA, Franta Hanzlik