I had a quest to destroy 45 bases using a warrior. Fair enough I suppose. But many of my warrior attacks did not register (over half I would guess). I sent a ticket and of course got no feed back.
I did notice that assists are not counted by these quests, I only get credit when I lead the attack with a warrior (or whichever type or element is required). Could that be your issue too?
The thought had occurred to me, so I tested it and it still wouldn’t register.
One of my team mates had this but it was also affecting her egg token missions too. When she rebooted it worked but she had to keep checking to make sure they kept counting
I had this issue, but a quick reset solved it