R-200 Problem - Port Forwarding & Virtual Server

On the R-200  routers with 4.2.3-R4(201606031245) firmware, there is evidently a problem with the Port Forwarding & Virtual Server.  

When you enter pertinent data on either the Port Forwarding or Virtual Server section, apply the settings, then reboot - there is no data stored on either section after rebooting.

The attached picture is what you see after rebooting.

What gives?

We tried to reproduce this on 4.2.3-R4(201606031245) firmware, but we could not.Please find the attached screenshots. Please share us config file. We will try it out here.