How to avoid the bug in the Research and Rescue expedition (Escari)? Anthem Guide and Walkthrough

When completing the contract for Brin (Guardians): Find the last guardian (Research and rescue) in Anthem, there is a common bug making it impossible to complete this task. After the combat section and going to the dungeons to rescue the guardian, you will proceed to fight the Escari robot. The bug occurs after the fight - it does not acknowledge completing the expedition even though defeating the robot was the last goal.

This bug a caused by defeating the boss too quickly, when playing with the full squad. This fight HAS TO be slow in order for Escari to speak out all of the encoded lines of dialogue (each dialogue sequence is triggered by her looing a given portion of health points). In order to successfully complete this mission, you have to:

• Convince your teammates to launch slow offensive,
• Choose higher difficulty level to make this fight more difficult and slower (e.g. 1-2 Grandmaster),
• Optionally, set your room to private and venture to this expedition alone (after you decrease the difficulty level; you can also take Consumables with you).