no reward at the end of the widening gyre

will

twice now i have completed this tfo and left when prompted, yet still received no reward. after the first time i`ve been cancelling the leave prompt and leave when i see the reward prompt. however i was distracted the second time and again left at the leave prompt without waiting. my point is why is it allowed to officially let you leave the tfo and not reward you. i have video clips of both incidents showing i left correctly and got nothing, no timer or progress, forced to repeat the tfo. the option to leave should not appear until the game has registered your finished and have earned your reward, not vice versa. the fact there is a need to be careful at the end when that part should be simple is infuriating.