Discussions from our smallest wikis are found here! Check the Wiki Hub for details
By Anonymous
Stasis is also very efficient at freezing them, making the kill easy.
By Anonymous
There is a bug on this quest.
Post from Focus Forum:

"Focus_Victor 25 Sept 2019, 17:56

We can confirm that there is indeed a rare occurence where one of the foxes won't respawn, and if you missed it the first time you cannot complete the mission.

The problem have been transfered to the developers is being investigated.

Those missions are however just secondary bonus content to help people who are behind in experience and gold, you can safely continue the game as it won't stop you from getting any of the quests, endings or achievements.

Sorry for the inconvenience.

Best Regards."
By Anonymous
So that bug was never fixed it seems.