The Division 2 players are deploying their skills only to have them deactivate almost immediately, and switch to a 15-second cooldown.
Redditor u/TheBalance1016 raised the issue (but is by no means the only player to do so), saying that it is making certain skills unusable.
Skills in The Division 2 are powerful abilities tied to a cooldown. The bug appears to cause skills to activate incorrectly.
Source: IGN.com Division 2 Players Reporting Bug That Disables Skills