Video Lagging Sony XBR & Krypton

Hi all,

i have a problem with a new serie that i have dowloaded : Westworld.
The video is lagging around every 10 sec.
I have no problem with other of my movies/series.
If i start the series with the builtin video player of the TV, it works great.

tkx for your help

My hardware :
Sony XBR65X850c
Krypton V.17

Info of the video file :

Format : Matroska
Format version : Version 4 / Version 2
File size : 4.92 GiB
Duration : 1h 5mn
Overall bit rate : 10.8 Mbps
Encoded date : UTC 2017-01-29 10:46:29
Writing application : mkvmerge v9.7.1 (‘Pandemonium’) 64bit
Writing library : libebml v1.3.4 + libmatroska v1.4.5

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 5mn
Bit rate : 10.3 Mbps
Width : 1 920 pixels
Height : 1 074 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Original frame rate : 23.976 (24000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.200
Stream size : 4.72 GiB (96%)
Writing library : x264 core 148 r2705+54 9f484c1 t_mod_Custom [8-bit@all X86_64]
Encoding settings : cabac=1 / ref=4 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=11 / psy=1 / fade_compensate=0.00 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=24 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / fgo=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=0 / crf=17.0000 / qcomp=0.60 / qpmin=0:0:0 / qpmax=69:69:69 / qpstep=4 / vbv_maxrate=62500 / vbv_bufsize=78125 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / pb_ratio=1.30 / aq=3:0.80 / aq-sensitivity=10.00 / aq-factor=1.00:1.00:1.00 / aq2=0 / aq3=0
Default : Yes
Forced : No
Color range : Limited
Matrix coefficients : BT.709

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 1h 5mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Frame rate : 31.250 fps (1536 spf)
Compression mode : Lossy
Delay relative to video : 1s 500ms
Stream size : 210 MiB (4%)
Language : French
Default : Yes
Forced : Yes