NSBPage.appendChild(myHeader) not working

1

I put this code in the .onshow() event of the second form (after the login form):
NSBPage.appendChild(myHeader)

A hamburger control is a child of the header. They show on the second form where the appendChild() code is, but on no later forms.

Thoughts?

2

It’s tough to say based on your description.

Can you make a small project with only the controls needed to show what you are doing?