Unexpected Regular Expression behaviour while checking string text

Question

This snippet has been written in typescript:

const Regex = /(Este processo possui \d* partes, porém {2}estão exibidas apenas \d* \(entre autores e réus\) na consulta via Internet\.)/gm;

const string = '\nt\tEste processo possui 715 partes, porém  estão exibidas apenas 200 (entre autores e réus) na consulta via Internet.\n';

console.log(Regex.test(string))
console.log(Regex.test(string))
console.log(Regex.test(string))
console.log(Regex.test(string))

It prints 'True' and 'False' deliberately. Result in terminals' command line:

True
False
True
False

Could somebody help me understand what prompts this behaviour?