Just new install the P3Dv4. Have now installed the PMDG 737 and OC4BAv4. Have a MCPv2 and an Efis. When I turn the Vertical Speed button it works on the MCP display until 1100. Then nothing happens on the MCP display but on the screen I see if I continue to turn the numbers 1200, 1300 etc.
Until 1900. Then comes 2000, 3000, 4000. That was not so in the past. Where could the problem be. I have tried the following scripts 4.0.4.4 and 4.5