TAdvStringGrid FixedFont->Assign Access Violation

Why does ->Assign, shown below, cause access violation?

void __fastcall TForm1::Button1Click(TObject *Sender)
if (!FontDialog1->Execute())

AdvStringGrid1->FixedFont->Assign(FontDialog1->Font); // <----- access violation

Above is intended to reflect for 64-bit compilation, using Seattle 10 Update 1 C++.

I have retested this here but I cannot reproduce this.

Is this happening with a basic new app compiled without using runtime packages?

Hi Bruno,

I reinstalled all parts of this, the IDE, and the problem has mysteriously vanished.

My apology in wasting your time.