Ionic3 - ionic toggle button is always hidden!

on HomePage which is root page, it’s working well
but on secondPage , it’s not working.
always hidden and display is none.
I forced it to not to none. and it appeared well but it’s not working at all( click menu icon, but not responding opening side menu page)

I added persistent to ion-menu but not working as well
should I have same value to root page’s ion-menu?

<ion-menu persistent = “true” style=" z-index: 9999999999 !important;"class=“ionmenu” [content]=“content” type=‘reveal’ side=“left”>

can you show your menu toggle code ?