Crash warning: Error on GI-GTK thread: Invalid index 1 for (SIMPLE-VECTOR 0)

[fictitiousexistence]

Describe the bug

Nyxt has been crashing randomly for some time now for me. I can't seem to find a specific time that it occurs. The output from the cli is:

WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (weak) reference
WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (strong) reference
WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (strong) reference
WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (weak) reference
<WARN> [08:35:37] Warning: Error on GI-GTK thread: Invalid index 1 for (SIMPLE-VECTOR 0).

Directly before this there are no other messages other than a log of the url I went to. I can reopen nyxt and go to the same url and have no issue directly after the crash.

Precise recipe to reproduce the issue
Run nyxt. Use normally. Random crash.

Information

• OS name+version:
  gentoo
• Graphics card and driver:
  Intel Corporation Alder Lake-P Integrated Graphics Controller (rev 0c) /intel xe
• Desktop environment / Window manager name+version:
  dwl
• Installation method (Flatpak, Guix, package manager, build from source):
  source
• Output of nyxt --system-information:

Nyxt version: 4
 Web Renderer: GI-GTK
 OS: Linux 6.14.0-rc4
 Lisp implementation: SBCL 2.5.0 (Dynamic space: 3072MB)
 ASDF version: 3.3.5
 Features: (:NYXT-GI-GTK :NYXT-GTK :WEBKIT2 :WEBKIT-2.46.5 :WEBKIT-2.46 :WEBKIT-2
  :WEBKIT2-CORS-ALLOWLIST :WEBKIT2-PASTE-PLAINTEXT :WEBKIT2-TRACKING
  :WEBKIT2-MUTE :WEBKIT2-EMOJI :WEBKIT2-MEDIA :WEBKIT2-SANDBOXING :GTK-3-22
  :GTK-3-20 :GTK-3-18 :GTK-3-16 :GTK-3-14 :GTK-3-12 :GTK-3-10 :GTK-3-8 :GTK-3-6
  :GTK-3-4 :GTK :GDK-3-22 :GDK-3-20 :GDK-3-18 :GDK-3-16 :GDK-3-14 :GDK-3-12
  :GDK-3-10 :GDK-3-8 :GDK-3-6 :GDK-3-4 :CAIRO-1-10 :CAIRO-1-12 :GDK-PIXBUF
  :GLIB-2-30 :GLIB-2-32 :GLIB-2-34 :GLIB-2-36 :GLIB-2-38 :GLIB-2-40 :GLIB-2-42
  :GLIB-2-44 :GLIB-2-46 :GLIB-2-48 :GLIB-2-50 :GLIB-2-52 :GLIB-2-54 :GLIB-2-56
  :GLIB-2-58 :GLIB :NYXT-4 :CLIPBOARD-CONTENT-METHOD :PARENSCRIPT :NSYMBOLS
  :FSET-EXT-STRINGS :SBCL+SAFE-STANDARD-READTABLE :NAMED-READTABLES :GLOBAL-VARS
  :LPARALLEL :21BIT-CHARS :PLUMP-UTF-32 :CLOSER-MOP :CL-PPCRE-UNICODE
  :CL-UNICODE :CL-JSON-DOUBLE-FLOAT-IS-SUBSUMED
  :CL-JSON-SINGLE-FLOAT-IS-SUBSUMED :CHUNGA :FLEXI-STREAMS :CL-PPCRE
  :BORDEAUX-THREADS :LPARALLEL.WITH-CLTL2 :LPARALLEL.WITH-CAS
  :LPARALLEL.WITH-STEALING-SCHEDULER :SPLIT-SEQUENCE
  CFFI-FEATURES:FLAT-NAMESPACE CFFI-FEATURES:X86-64 CFFI-FEATURES:UNIX :CFFI
  CFFI-SYS::FLAT-NAMESPACE ALEXANDRIA::SEQUENCE-EMPTYP :FAST-IO-SV :FAST-IO
  :CL-JSON-CLOS :CL-JSON :SBCL-USES-SB-ROTATE-BYTE CHIPZ-SYSTEM:GRAY-STREAMS
  :THREAD-SUPPORT :ASDF3.3 :ASDF3.2 :ASDF3.1 :ASDF3 :ASDF2 :ASDF :OS-UNIX
  :NON-BASE-CHARS-EXIST-P :ASDF-UNICODE :ARENA-ALLOCATOR :X86-64 :GENCGC :64-BIT
  :ANSI-CL :COMMON-LISP :ELF :IEEE-FLOATING-POINT :LINUX :LITTLE-ENDIAN
  :PACKAGE-LOCAL-NICKNAMES :SB-CORE-COMPRESSION :SB-LDB :SB-PACKAGE-LOCKS
  :SB-THREAD :SB-UNICODE :SBCL :UNIX)

**Output when started from a shell**
WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (weak) reference
WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (strong) reference
WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (strong) reference
WARNING:
   GObject at #.(SB-SYS:INT-SAP #X7F5744FF70B0) has no lisp-side (weak) reference
<WARN> [08:35:37] Warning: Error on GI-GTK thread: Invalid index 1 for (SIMPLE-VECTOR 0).