Почему не везде показывается картинка?
#!/usr/bin/python3
import tkinter as tk
import tkinter.ttk as ttk
# import site.assembly
toplevel1 = tk.Tk()
toplevel1.configure(height=80, width=500)
toplevel1.geometry("500x80")
for i in range(2):
frame11 = ttk.Frame(toplevel1)
frame11.configure(height=500, width=80)
label28 = ttk.Label(frame11)
img_ico = tk.PhotoImage(file="assets/ico.png")
label28.configure(image=img_ico, text='label2')
label28.pack(side="left")
frame13 = ttk.Frame(frame11)
label26 = ttk.Label(frame13)
label26.configure(text='pymag - конструктор приложений')
label26.pack(anchor="sw", side="top")
label27 = ttk.Label(frame13)
label27.configure(text='теги: teg1 teg2 teg3 teg4')
label27.pack(anchor="sw", side="top")
frame12 = ttk.Frame(frame13)
frame12.configure(height=20, width=100)
label22 = ttk.Label(frame12)
img_z_1 = tk.PhotoImage(file="assets/z.1.png")
label22.configure(image=img_z_1, text='label16')
label22.pack(side="left")
label23 = ttk.Label(frame12)
label23.configure(image=img_z_1, text='label17')
label23.pack(side="left")
label24 = ttk.Label(frame12)
label24.configure(image=img_z_1, text='label18')
label24.pack(side="left")
label25 = ttk.Label(frame12)
label25.configure(image=img_z_1, text='label21')
label25.pack(side="left")
frame12.pack(side="right")
frame13.pack(anchor="n", padx=10, pady=10, side="left")
button2 = ttk.Button(frame11)
button2.configure(text='Установить')
button2.pack(padx=20, side="right")
frame11.pack(expand="true", fill="x", side="bottom")
toplevel1.mainloop()