Character Quest "Defeat 5 Enemies Using Jawa Engineer" is bugged.

The answer is here in this thread check here

Same here, I saw you can use JML and call to assist and he does true damage. But I dont have JML so I cant even try it

I used the new rebel fighter team. You need to undermine them and then use vel without killing the enemy and it should register. I went to a node with a droideka and hit it when it had damage immunity 

Same. Also deflective ward feat not registering.

Also, same issue

You make an excellent point….

Same 

Jawa engineer ‘kills’ by thermal detonators.  He does not kill directly with any skill, so is the quest even achievable?

Same. Multiple battles and not getting completion using only Jawa Engineer