There should NOT be two HMP components listed as you described replacing only the license.
Temporarily set the Dialogic service to manual (if you set it to automatic), delete the registry key in Windows for the installed boards, then reboot the system. After logging back in, open DCM which will redetect the HMP installation as a single install. Verify settings and you should be good to go.
You can manually delete both installations, but the reg key keeps it clean.