Stay undetected in the storm bugged

Product: Battlefield V
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number GTX 1080
Enter RAM memory size in GB 16
Which part of the game is the issue happening in? Single Player War Story
Which part of the mode? Nordlys
Please select your region Asia
On which server did this happen?
When did this happen? (dd.mm.yy hh:mm)
Summarize your bug Completed Challenge for "All is Ash" (Stay undetected in the storm). In-game it says I have completed the challenge, but in the menu it says it is incomplete. So I am unable to receive the reward.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? First time I completed the "Stay undetected in the Storm" I noticed the "Warm up at all the camp fires" was not completed so before the character did the whole sequence of falling into the river I restarted the mission (at this point I first observed the "Stay undetected in the Storm" was highlighted as completed). Once I completed the "Warm up at all thee camp fires" left game expecting to have completed all the challenges and receive the reward. Noticed the "Stay undetected in the Storm" was not completed. So I did the challenge again and went all the way to the scene where the character falls into the river and walks to the shed. Still no luck.
What happens when the bug occurs? Melee Weapon reward is locked
What should be happening instead? Melee Weapon Reward unlocked

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Noticing the same problem with The Tiger's Bite "Complete the chapter without repairing"