Why don’t work this code? void UDialogScrollBox::AddNewButtonDialogBlock( TSubclassOf<class UUserWidget> AnimatedButton_BP) { if(AnimatedButton_BP) { UUserWidget * Button = CreateWidget<UUserWidget>(GetWorld(), AnimatedButton_BP); UCanvasPanel * ButtonLayout = NewObject<UCanvasPanel>(GetWorld…

I found a solution. The problem was in these lines.Without them all work well. ButtonSlot->SetAutoSize(true); ButtonSlot->SetAnchors(FAnchors(0.f, 0.f, 1.f, 1.f)); ButtonSlot->SetOffsets(FMargin(0.f, 0.f));