Hello,
I have the hardware raspberry pi2 with LibreELEC 8.0.
My dlna mediaserver is a TwonkyServer for the pictures and musics.
Also, I have tested another mediaserver.
I want use the dlna client in Kodi on the pi.
I can not show the pictures with the dlna client on LibreELEC.
From my TV, smartphone or WindowsPC I can see the pictures.
I have already asked in the forums of the Mediaserver.
These could understand the problem.
But they could not suggest a solution.
The problem I have only with the DLNA client from OpenELEC for the PI.
Have anyone a idea.
Sorry for my ugly english 
best regards Frank