Original Post — Direct link
The following challenges are bugged. You can't make any progress on them. And Disavowed Beyond Recognition and Rogue Eliminator each have duplicates that you can't progress on either. The duplicates aren't on PC.

Bolt Move
Kill 25 enemies with the Survivalist signature weapon
Crossbow Mayhem
Kill 100 enemies with the Survivalist signature weapon
Modern Day William Tell
Kill 250 enemies with the Survivalist signature weapon
Grenade!
Kill 25 enemies with the Demolitionist signature weapon
Death Comes
Kill 100 enemies with the Demolitionist signature weapon
In Small Packages
Kill 250 enemies with the Demolitionist signature weapon
Rock It!
Kill 25 enemies with the Technician signature weapon
Nearly Magical Missiles
Kill 100 enemies with the Technician signature weapon
The Grand Guided Tour
Kill 250 enemies with the Technician signature weapon
Getting a Taste
Complete your first bounty
Dead or Alive
Complete 25 bounties
There's No Escape
Complete 100 bounties
A Little Help?
Put out a call for backup
Disavowed Beyond Recognition (DUPLICATE)
Eliminate your first disavowed agent in any Dark Zone
Rogue Eliminator (DUPLICATE)
Eliminate 10 disavowed agents in any Dark Zone
over 3 years ago - Ubi-TheBerry - Direct link
Hey there guys,

Sorry to hear you're having issues with Core Challenges!

Just to check, does this also apply when checking progress at https://ubisoftconnect.com/ ?
over 3 years ago - Ubi-Houck - Direct link
Hello!

We are currently looking into an issue with challenge progression not refreshing in Connect Overlay. Our known issues list can be found here.

Could you please try restarting the overlay by closing it and re-opening it should update your challenge progress. If this does not progress, could you please provide video of this?

Thanks!
over 3 years ago - Ubi-Houck - Direct link
Originally Posted by NoahRocks205
I have refreshed the app. This issue persists on the PS4 as well.. And they do not update on the website either.
Thanks for the update, NoahRocks205!

I have passed these reports to our Ubisoft Connect team.

Thanks!