Parallel LCD to Arduino

Hi..

I want to connect a parallel LCD to Arduino Mega
When I use these pins 12, 11, 5, 4, 3, and 2.
It works with no issues.

However,
when I use pins 22,24,26,28,30 and 32, it does not work.

What is the problem, why I can not use these pins in Mega ?

I am using arduino voice shield linked below with arduino mega.

https://www.zeroohm.com/voicebox-shield-retail/?search=voice%20box

The voicebox shield is using the pins: 2,3,4,5,6,7,8,9,10,11,12 and 13

That's why I need to use different pins for the parallel LCD

Waiting for a reply

Waiting for a reply

Waiting to see some code and an explanation of what "does not work. " means.