I have the same problem and have taken it in another thread but want to come back with this.
(I've really tested everything).
I have 2 Formuler Z8, one shows all pictures while the other does NOT.
I have tried different iptv providers and get the same result.
I have tested via Portals and m3u via Playlists but this is just one of my Z8 that shows all VOD images.
The Z8 showing all pictures was purchased just when the Z8 was launched and has been through all the updates.
My second Z8 that does not show pictures is purchased in October.
What I believe is that the error is somewhere in the Z8 and in any update that my latest Z8 has not received.
I would like to say that the error is NOT with the iptv provider.
(But I could be wrong)
It would be very nice to have a solution to this question.