STUCK ON "Loading Data..... "

[MDMEngineering]

Apple TV 4K (3rd generation) Wi-Fi + Ethernet
Purchase Date: August 2024
tvOS 17.6
Exhibit: Media Viewer version 1.2.0
Workspace ONE UEM console version 23.10
Single app mode enabled for edu.nebraska.ImageViewer

App Config:
edu.nebraska.ImageViewer.dataURL String https://webportal.northwell.edu/mdmapps/appletv/Northwell_Digital_Signage.csv
edu.nebraska.ImageViewer.airplayViewHideOnVideo Boolean true
edu.nebraska.ImageViewer.playVideosInFull Boolean true
Northwell_Digital_Signage.csv

TEST.mp4

CSV has one line:
Name,URL,Duration,UpdateInterval,StartOn,EndBy,Cache
TEST,https://webportal.northwell.edu/mdmapps/appletv/TEST.mp4,0:01:00,1:00:00,1/1/2024 0:00,12/31/2124 23:59,no

RESULT:

• Apple TV launches Exhibit: Media Viewer in Single App Mode, but seems to get stuck on a screen that says Loading... Loading Data
• The device never loads the video, which can play from this URL in your browser: https://webportal.northwell.edu/mdmapps/appletv/TEST.mp4
• The video is 15 seconds long and is only 463 KB in size.