Rocket Chat ignores robots.txt and blocks google search bots

Description:

In "General -> Robots.txt File Contents", I put:
User-agent: *
Allow: /

In "Meta -> Custom Meta Tags", I put:

<meta name="description" content="blah blah blah" />
<meta name="keywords" content="blah1,blah2" />

However, I have waited more than 3 days. My website appears by google search, but its desctiption says "No information is available for this page.". So I went to Google search console and tested URL, it says robots.txt is blocking their bots so that they can't create website description. But above I have allowed all bots into my website.

Steps to reproduce:

1. Provided above in Description section.

Expected behavior:

Actual behavior:

Google search should say description of my website.

Server Setup Information:

• Version of Rocket.Chat Server: 1.0.2
• Operating System: ubuntu 18.04
• Deployment Method:
• Number of Running Instances:
• DB Replicaset Oplog:
• NodeJS Version:
• MongoDB Version:

Additional context

Relevant logs:

Start with the General → Robots.txt File Contents and Meta → Custom Meta Tags settings, then verify the robots.txt response with Google Search Console or an equivalent crawler. Done means an Allow: / configuration is honored and the generated page can be crawled and described.