I’ve not noticed this before today. I have a WarZone match in my recent history that I can no longer query. It’s a game from the start of January (2016-01-02).
MatchId: a41f4b58-20e5-4fa9-8d4a-604615260fc3
HaloWaypoint Match Viewer
HaloTracker Match Viewer
Query
> GET https://www.haloapi.com/stats/h5/warzone/matches/a41f4b58-20e5-4fa9-8d4a-604615260fc3 HTTP/1.1
> Ocp-Apim-Subscription-Key: [REDACTED]
> Host: www.haloapi.com
> Accept-Encoding: gzip, deflate
Response
> HTTP/1.1 404 Not Found
> Content-Length: 0
> Strict-Transport-Security: max-age=157680000; includeSubDomains
> X-Content-Type-Options: nosniff
> E2EActivity: cLuXNznhdEuHfVtsaEkmcA==
> Date: Sat, 30 Jan 2016 11:04:50 GMT