Ah, I'm not sure. I know on PC I've had times where my xp didn't count normally when the game ended, multiple times in a row. I would level up in-game but it didn't in the lobby. Eventually it went back to normalbut I never got my xp for those games
The challenges can complete regardless of conditions. You just have to hope it doesn't update your challenge status to the server when you get the kill.
I was within like the first 50 people to reach level 1000 in bo3 hosting SnD XP lobbies and never got reset. I am still very high on the xbox leaderboards...
I just kept trying to buy it by pressing both try again and buy until the error didn't show up. As long as it is charging you the preauthorization it should work.
I was having the same issue and spammed it about 20 times. I didn't notice it went through until I opened the game because it just doesn't give you the error when it does.
I decided to just start spamming the purchase with my regular Visa debit and got it to go through twice. Maybe you could add that in your post if people getting the contact Microsoft support error :smile: