Two days in a row killcount incorrect

Two times in the past twenty four hours I have had my kills not add up.

One match I got first strike and a double kill then I was killed and when I look at board it says 0kills 1 death. Now how did I get first strike if I had no kills. No suicides nothing so finish the game and the medal for first strike is there. So I know I got the kills but the number didn’t add up.

Today im playing ranked slayer and again I get a killing spree then die and it says I have 3 kills. When I get top gun medal it says I only have 8 but end of match no suicides. Is there a fix for this so it doesn’t keep happening? Because I keep losing exactly two kills from my count and the medals are coming up when I should get them but the killcount is wrong

My interest is piqued. Could you share the link to the match(es) where this happened please? If you’re unfamiliar with Waypoint, this link should give you a good starting point: https://www.halowaypoint.com/en-us/games/halo-5-guardians/xbox-one/game-history/players/makeyourpeace?gameModeFilter=All&start=0&count=10