Need help, colors glitching

I have been working on a pixel animation thru aseprite, everything is fine in app preview but when i convert it to a gif and save, there are some colors glitching all over the animation, does anyone know what’s the issue for it?

That is a weird issue. I don’t think you’re quite using 256 colors in there but I could be wrong. You should try Gifski to create a gif with your animation.

You can export the animation as a png sequence from Aseprite and use Gifski to compile it together (through the command line). If you need some help with using Gifski, let me know!