Source contains bi-directional text without proper reference to writing direction in the appropriate TTML element(s):
LTR (source): '"يملعلا عمتجملا يف ةدئاسلا فقاوملا نم هبايترا ىلإ ًارظن،'
RTL: '،يملعلا عمتجملا يف ةدئاسلا فقاوملا نم هبايترا ىلإ ًارظن"'
Review your TTML file and update it to ensure that there is a proper reference to writing direction in the appropriate TTML element(s). The appropriate TTML elements can be found in the following Partner Help Center article which was published and socialized on January 13th, 2017: What are Netflix's requirements for right-to-left (RTL) language timed text?