Could it be a problem with your project, or it is likely to be the Hogan's bug?
template.mustache
<ul>{{#.}}<li>{{.}}</li>{{/.}}</ul>
index.js
const mustache = require('mustache');
const template = require( './template.mustache');
// prints <ul><li>2</li><li>3</li></ul>
console.log(mustache.render(`<ul>{{#.}}<li>{{.}}</li>{{/.}}</ul>`, ['2', '3']));
// prints <ul></ul>
console.log(template(['2', '3']));
Could it be a problem with your project, or it is likely to be the Hogan's bug?
template.mustache
index.js