在管道之后获取二进制数据

I'm getting an malformed utf8 when I try to convert an array to json, that happens when I have any accent like in this case André

Laravel transform the string into a binary string b"André" in some part of the code

I dumped the attribute in many lines of the laravel framework

dump(\App\Vendasitem::where('codigovi', 112685)->first()->produto->nomeproduto);

and discovered that it happens inside of a pipeline right after the authenticate middleware