Chat gradient not working

[mh66666]

Minecraft version: 1.17.1 - Paper - For some reason when i add a gradient it doesn't combine it together but it only puts it as one color for some reason. i hope there is a fix because i have been going into plugins and trying to figure out how 2 fix it. It only does this in chat but it combines it in tablist. Mh6#0001

(https://cdn.discordapp.com/attachments/779009025907753020/1000605365316096000/unknown.png)