Live plots with text boxes

I am trying to plot two waveforms to appear like realtime plots. I also need to have two text boxes in the same figure with static content.

I am trying to achieve it with the following approach. Only one waveform and one textbox are being displayed. However, when i comment out the textboxes i do get two live plots. What am i doing wrong?

  for n = somevalue       
    subplot(2,2,1)
    ax1pos_adj = [ 0.0500 0.8000 0.7500 0.1612];
    set(gca,'position',ax1pos_adj)
    plot (t,ei); 
    axis([t(n),t(n+Dx),yaxis1,yaxis2]);
    grid
    
    subplot(2,2,2)
    ax2pos_adj = [ 0.8500 0.8000 0.1400 0.1612];
    set(gca,'position',ax2pos_adj)
    xpos = 0.1; ypos = 0.5;
    text(xpos, ypos, '90', 'FontSize', 70, 'Color', 'y')
    set(gca,'XColor', 'none','YColor','none')
     
    subplot(2,2,3)
    ax3pos_adj = [ 0.0500 0.5800 0.7500 0.1612];
    set(gca,'position',ax3pos_adj)
    plot (t,ecgii); 
    axis([t(n),t(n+Dx),yaxis3,yaxis4]);
    grid
     
    subplot(2,2,4)
    ax2pos_adj = [ 0.8500 0.5800 0.1400 0.1612];
    set(gca,'position',ax2pos_adj)
    xpos = 0.1; ypos = 0.5;
    text(xpos, ypos, '130', 'FontSize', 40, 'Color', 'g')
    set(gca,'XColor', 'none','YColor','none')
    
    drawnow
  end