m2ts files with 1080p50 / 1080p60 from all Panasonic Camcoder

Old WDTV Live have played without problem m2ts files in 1080p50 from all Panasonic Camcoder.

New WD TV Live Streaming can not play thies File. (playback freezes & stutter, without sound after 15 sec).

Will it work in future Firmware or not? 

Complete name : \WDTVLIVE\storage\na_21.m2ts 
Format : BDAV
Format/Info : Blu-ray Video
File size : 4.00 GiB
Duration : 21mn 50s
Overall bit rate : 26.2 Mbps
Maximum Overall bit rate : 28.0 Mbps

Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.2
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=3, N=24
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 50.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive

Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 21mn 50s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels

Several users have reported issues with the M2TS files, specially if they are using AC-3 audio code, I have try few files with this specifics codes and the result have been mixed. I tried 3 from a USB drive connected directly to the WD TV and one over the network, the one over the network was impossible to see, the other two, one player OK the other started to stutter after 10 minutes…