I am attempting to combine images after cv2 perspective warping, but I get parts of other images appear. This is NOT CONSISTENT. Sometimes I run the code and everything looks right; other times part of other images appear.

4 images use perspective, but when I add one that has just been resized, parts of other images appear where they are not supposed to. Commenting out creating some images has different parts of other images appearing, and I can run the same program multiple times with different results.

Here is the code, but it does not include the images

import tkinter as tk
from tkinter import *
import PIL
from PIL import Image, ImageTk
PIL.Image.ANTIALIAS = PIL.Image.LANCZOS
import os.path
import numpy as np
import cv2

WHITE="#ffffff"
BLACK="#000000"
BLUE="#0000ff"
DK_GREY="#808080"
LT_GREY="#a0a0a0"
YELLOW="#ffff00"
MED_ORANGE="#ff9933"
RED="#ff0000"
DK_RED="#cc0000"

CANVAS_WIDTH=645
CANVAS_HEIGHT=480

mainWin = tk.Tk(className='Castle game')
mainWin.geometry('700x500')

canvas = tk.Canvas(mainWin, height=CANVAS_HEIGHT, width=CANVAS_WIDTH, bg=BLACK)

canvas.place(x=10,y=10)

castleWall1Path = os.path.abspath(os.path.join('..','images','CastleWall1.png'))
castleWall2Path = os.path.abspath(os.path.join('..','images','CastleWall1-window.png'))
castleFloorPath = os.path.abspath(os.path.join('..','images','CastleFloor.png'))
castleCeilingPath = os.path.abspath(os.path.join('..','images','CastleCeiling1.png'))
castleWallFarPath = os.path.abspath(os.path.join('..','images','CastleWall1-doorClosed.png'))

rtSrcPts = np.float32([(0,0), (640,0), (640, 480), (0, 480)])
rtDstPts = np.float32([(0, 160), (215, 0), (215, 480), (0, 320)])

lftSrcPts = np.float32([(0,0), (640, 0), (640, 480), (0, 480)])
lftDstPts = np.float32([(0,0), (215, 160), (215, 320), (0, 480)])

floorSrcPts = np.float32([(0,0), (640, 0), (640, 480), (0, 480)])
floorDstPts = np.float32([(215, 0), (430, 0), (645, 160), (0, 160)])

ceilSrcPts = np.float32([(0,0), (640, 0), (640, 480), (0, 480)])
ceilDstPts = np.float32([(0,0), (640, 0), (430, 160), (215, 160)])

rtImg = cv2.imread(castleWall1Path, cv2.IMREAD_UNCHANGED)
rtImg = cv2.cvtColor(rtImg, cv2.COLOR_BGRA2RGBA)

lftImg = cv2.imread(castleWall2Path, cv2.IMREAD_UNCHANGED)
lftImg = cv2.cvtColor(lftImg, cv2.COLOR_BGRA2RGBA)

floorImg = cv2.imread(castleFloorPath, cv2.IMREAD_UNCHANGED)
floorImg = cv2.cvtColor(floorImg, cv2.COLOR_BGRA2RGBA)

ceilImg = cv2.imread(castleCeilingPath, cv2.IMREAD_UNCHANGED)
ceilImg = cv2.cvtColor(ceilImg, cv2.COLOR_BGRA2RGBA)

farImg = cv2.imread(castleWallFarPath, cv2.IMREAD_UNCHANGED)
farImg = cv2.cvtColor(farImg, cv2.COLOR_BGRA2RGBA)
farImg = cv2.resize(farImg, (215,160))

xformMatRt = cv2.getPerspectiveTransform(rtSrcPts, rtDstPts)
rtImgPersp = cv2.warpPerspective(rtImg, xformMatRt, (215, 480), borderMode=cv2.BORDER_TRANSPARENT)
rtImgPil = Image.fromarray(rtImgPersp)
rtImgDisp = ImageTk.PhotoImage(rtImgPil)
canvas.create_image(430, 0, image=rtImgDisp, anchor = tk.NW)

xformMatLft = cv2.getPerspectiveTransform(lftSrcPts, lftDstPts)
lftImgPersp = cv2.warpPerspective(lftImg, xformMatLft, (215,480), borderMode=cv2.BORDER_TRANSPARENT)
lftImgPil = Image.fromarray(lftImgPersp)
lftImgDisp = ImageTk.PhotoImage(lftImgPil)
canvas.create_image(0,0, image=lftImgDisp, anchor = tk.NW)

xformMatFloor = cv2.getPerspectiveTransform(floorSrcPts, floorDstPts)
floorImgPersp = cv2.warpPerspective(floorImg, xformMatFloor, (645, 160), borderMode=cv2.BORDER_TRANSPARENT)
floorImgPil = Image.fromarray(floorImgPersp)
floorImgDisp = ImageTk.PhotoImage(floorImgPil)
canvas.create_image(0, 320, image=floorImgDisp, anchor = tk.NW)

xformMatCeil = cv2.getPerspectiveTransform(ceilSrcPts, ceilDstPts);
ceilImgPersp = cv2.warpPerspective(ceilImg, xformMatCeil, (645, 160), borderMode=cv2.BORDER_TRANSPARENT)
ceilImgPil = Image.fromarray(ceilImgPersp)
ceilImgDisp = ImageTk.PhotoImage(ceilImgPil)
canvas.create_image(0, 0, image=ceilImgDisp, anchor = tk.NW)

farImgPil = Image.fromarray(farImg)
farImgDisp = ImageTk.PhotoImage(farImgPil)
canvas.create_image(215, 160, image=farImgDisp, anchor = tk.NW);

mainWin.mainloop()

Sometimes this looks right; other times part if CeilImg or FloorImg show up near the top of the display, with no changes to the code.

Is there something I need to clear to remove a previous image from processing? Or is this just not going to work this way?