Doe's not show host with open ports

There is a problem with showing open ports in green color.

I just tried v3.3 & v3.4 and If you select "Hosts with open ports only" in preferences > display, the ip scan result does not show open ports with green color.

however if you set "Alive Hosts (responding to pings) only" in preferences, you can see the host is alive and you can see open ports in "ports [1+]" section. (but the color is still blue)

I tried both 32bit & 64 bit versions but the issue is still exist.

Let me know if it is a bug or a problem on behalf of me.

Regards,
David