This has reportedly been happening since before FotL and it got worse during that event. It hasn't gotten better since. I just had a good run in The Salted Mines but noticed one of the objective scoring marks where you destroy a blight and defeat all of the enemies didn't grant me score and it told me to go to the next area anyways. There is nothing to prove in Call to Arms contests if the scoring doesn't work right, Bungie. This needs addressed badly. You shouldn't host this event again until it's fixed. Maybe this is proof that scoring shouldn't be tied to rewards for Portal activities/events. Other people have argued about that. Also don't ask for a video or picture from me. I can't provide them due to software issues (blame Microsoft). But I guarantee that I'm not the only one experiencing this. Everyone is trying to take the scoring in this event seriously and I'm sure plenty of others have noticed too. If asked for a link to a video that ISN'T mine that shows and/or talks about this issue, I might be able to find one if I search hard enough.