XMedia Recode - mkv settings for LG 3DTV (2011)? VidCoder works, XMedia not

As title says, I'm having problems encoding files through latest XMedia with the same configuration as VidCoder, which works perfectly for my TV USB native player but doesn't allow me to burn-in .ass subtitles (which are necessary for 3D viewing). XMedia gives me the "unsupported video codec" message on TV, as well as the error (little X) thumbnail.

Does anyone know which settings should I accomodate in XMedia Recode so I can replicate the functioning VidCoder encoding?

Here is the MediaInfo of a VidCoder-encoded perfectly playable file:

Format : Matroska
Format version : Version 4 / Version 2
File size : 8.75 GiB
Duration : 1 h 30 min
Overall bit rate : 13.8 Mb/s
Encoded date : UTC 2017-08-17T18:32:32Z
Writing application : HandBrake 1.0.7 2017040900
Writing library : Lavf57.7.2 / Lavf57.7.2

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1 h 30 min
Nominal bit rate : 13.5 Mb/s
Width : 1 920 pixels
Height : 1 040 pixels
Display aspect ratio : 1.85:1
Frame rate mode : Constant
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) : 0.282
Writing library : x264 core 148 r2708 86b7198
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=6 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=2pass / mbtree=1 / bitrate=13511 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=20000 / vbv_bufsize=25000 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709