Bitshares Explorer - Witnesses - Wrong Number of Active Witnesses Listed

Expected behavior

The witnesses page should show 21 Active Witnesses and the remaining is Standby Witnesses.

Actual behavior

The witnesses page only show 19 Active Witnesses and there is 2 Active Witnesses shown under Standby Witness which is incorrect.

How to reproduce

Steps:

1. Go http://open-explorer.io
2. Observe the main page show there is 21 Active Witnesses
   
3. Click "Governance" at Top Right header and then Click "Witnesses"
   
4. Observe
   
   

• Browser: Firefox 58.0.2
• Operating system: Windows 8.1