LG BDP is very picky about MP4 DLNA profile
Which device are you experiencing problems with?
LG BP TBD
Which issues do you see?
It is picky if a DLNA profile is supplied for MP4, i.e. it shows videos with AVC_MP4_BL_L3L_SD_AAC but refuses AVC_MP4_MP_SD_AAC_MULT5.
Removing the DLNA profile alltogether makes the videos visible and playable