Transparent gradiant wont render right

I have rendered a gif, and the shadow underneath the charachter diddnt render right. I couldnt upload the actual gif or a screenshot of both images because of the file limit, and I could only upload one file at a time. Does anyone know a fix to the possible transparency bug?

What “target” did you choose in the Render dialog?
“Auto”? Try “imagemagick” or “magick++” or even “ffmpeg”.
Our native gif is… simple.

I will try those! thank you!