Image conversion .gif -> .webp using ImageMagick is producing artifacts.

[user0382906]

This might be a problem with ImageMagick or maybe my personal machine. I Installed ImageMagick and ffmpeg using Homebrew and launched Grabber using the Grabber unix executable file. Sometimes the file conversion works and sometimes there are black, green, or grey marks all over the image during playback. I don’t see any errors in the log. I wonder if anyone else has this problem.

Example Image:
https://safebooru.org/index.php?page=post&s=view&id=502025

I believe ffmpeg is also supposed to be able to preform this conversion but Grabber just saves the .gif file. I am getting the error:
[Error] [FFmpeg] [webp @ 0x7fdf9b005580] webp muxer supports only codec webp for type video [out#0/webp @ 0x7fdf9b004fc0] Could not write header (incorrect codec parameters ?): Invalid argument in the log.

• OS: MacOS 14.4
• Grabber version: 7.12.2 x86
• FFmpeg version 7.0
• ImageMagick version 7.1.1-32 Q16-HDRI x86_64 22207