@Fabián Bonetti The video's codec is unsupported by your browser and also here with mine, too. When I download it and play it locally, e.g. with #VLC or #mplayer, it plays back fine.

A brief check shows me this:

VIDEO_ID=0
VIDEO_CODEC=ffh264
CLIP_INFO_NAME0=major_brand
CLIP_INFO_VALUE0=isom
CLIP_INFO_NAME1=minor_version
CLIP_INFO_VALUE1=512
CLIP_INFO_NAME2=compatible_brands
CLIP_INFO_VALUE2=isomiso2avc1mp41
CLIP_INFO_NAME3=encoder
CLIP_INFO_VALUE3=Lavf58.45.100
CLIP_INFO_N=4
FILENAME=/home/xxx/BmR.mp4
DEMUXER=lavfpref
VIDEO_FORMAT=H264
VIDEO_BITRATE=343584
VIDEO_WIDTH=1366
VIDEO_HEIGHT=768
VIDEO_FPS=25.000
VIDEO_ASPECT=0.0000
START_TIME=0.00
LENGTH=26.76
SEEKABLE=1
CHAPTERS=0
EXIT=EOF