UI elements turn black due to a theme loading failure.

├   KER  Linux 7.1.3-arch1-2
├   PAK  1537
├   AGE  34 days
└   USR  chen-shuhan@archlinux

├   SHE  fish 4.8.0
├   TER  kitty 0.47.4
└   TFO  JetBrainsMapleMono-Regular (13.5pt)

On Arch Linux with the latest version of Firefox, the interface elements turn black due to a theme loading failure. 'This issue persists even when using the default theme. Going to Settings and disabling the theme (which automatically falls back to another theme) resolves the problem.Re‑enabling the problematic theme does not reproduce it immediately. However, the issue reappears after restarting Firefox. System Info: OS Arch Linux x86_64 ├  KER Linux 7.1.3-arch1-2 ├  PAK 1537 ├  AGE 34 days └  USR chen-shuhan@archlinux WM niri 26.04 (Wayland) ├  SHE fish 4.8.0 ├  TER kitty 0.47.4 └  TFO JetBrainsMapleMono-Regular (13.5pt)