Cannot view photos on LGTV client

[Gibber]

Thanks for the responses.
The photos are all jpeg format.
I checked the bug post linked above which referred to loading as very slow so I tried again and left the all black screen sit for over 5 minutes and it was still all black so it may be related but in this case it goes beyond very slow.
The TV is a OLED55B6P running WebOS 3 version 05.70.40 which is current.