Occasionally my drone and my binoculars will stop working. When I press the key (up arrow or down on the d-pad -xbox controller) I can here the 'click' noise, but nothing happens
I googled it, and someone said that they think the bug happens when you enter a rebel helicopter
I hope ubisoft fix this soon cause it's super annoying
Not sure what causes it but happened to me a few times on PC.
There's a longer thread about this bug here.