I have a clean install of Magento 2.1.3 with sample data. No themes or plugins have been added.

When I create a new role, the role resource tree does not display, and there is no other error or warning on the page.

There are some posts related to earlier Magento releases that speak about the acl.xml file requiring change - and yet others claiming to have fixed the issue by changing folder permissions (no folders were listed, nor were we shown which permissions needed to be changed).

If I have to go through the entire Magento documentation I will, but the point of coming to any forum is to share information and hopefully save time.

Should I come across the solution, I will come back and post the answer. If anyone has already tackled this, a detailed response would be appreciated.

Disclaimer: I am very new to Magento 2.1x - the most recent Magento experience I had was CE 1.7.

Thank you in advance to all!