DLPDLCR2000EVM: Raspberry Pi 3B+ Splash Screen Flickers but no Desktop Display

I am trying to integrate the Raspberry Pi 3B+ with the DLPDCLR2000EVM to display static images on the run, but I cannot get the projector to display the desktop of the Raspberry Pi OS. The default splash screen flickers during boot, and when I execute a terminal command that would change the display, like vlc file.mov.

I used this tutorial to wire the components together:

https://community.element14.com/products/roadtest/rv/roadtest_reviews/292/dlp_pico_display_pro_3#jive_content_id_Putting_Things_Together

Here are the configuration changes I made to the Raspberry Pi:

/boot/config.txt

# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on

# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

# Automatically load overlays for detected cameras
camera_auto_detect=1

# Automatically load overlays for detected DSI displays
display_auto_detect=1

# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_framebuffers=2

# Run in 64-bit mode
arm_64bit=1

# Disable compensation for displays with overscan
disable_overscan=1

[cm4]
# Enable host mode on the 2711 built-in XHCI USB controller.
# This line should be removed if the legacy DWC2 controller is required
# (e.g. for USB device mode) or if USB support is not required.
otg_mode=1

[all]

[pi4]
# Run as fast as firmware / board allows
arm_boost=1

[all]

dtoverlay=i2c-gpio,bus=3,i2c_gpio_sda=23,i2c_gpio_scl=24,i2c_gpio_delay_us=2

dtoverlay=dpi18
overscan_left=0
overscan_right=0
overscan_top=0
overscan_bottom=0
framebuffer_width=864
framebuffer_height=480

enable_dpi_lcd=1

display_default_lcd=1

dpi_group=2
dpi_mode=87

dpi_output_format=458773
hdmi_timings=854 0 14 4 12 480 0 2 3 9 0 0 0 60 0 32000000 3

/etc/rc.local

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
printf "My IP address is %s\n" "$_IP"
fi

sudo i2cset -y 3 0x1b 0x0c 0x00 0x00 0x00 0x13 i
sudo i2cset -y 3 0x1b 0x0b 0x00 0x00 0x00 0x00 i

exit 0

The test patterns work, even in quick succession, so I don't think there is timing issue either. Here is a Python script I use to check the test patterns:

import os
import time

os.system('i2cset -y 3 0x1b 0x0c 0x00 0x00 0x00 0x1b i')
os.system('i2cset -y 3 0x1b 0x0b 0x00 0x00 0x00 0x01 i')

for index in range(1, 14):
PATTERN = "{0:#0{1}x}".format(index, 4)
os.system('i2cset -y 3 0x1b 0x11 0x00 0x00 0x00 ' + PATTERN + ' i')

What could be the reason why the display is stuck at the splash screen, only flickers, and does not display the Raspberry Pi OS desktop? All tutorials, or discussions seem to work right away.