Getting merged with other players in expeditions can reset/align your winstreak.
See attached clips, fast forward to the matches ends:
In the one, I have a streak of 4, get merged to another guy's map and end up with a streak of 2. I guess the same streak the player had that I got sorted to.
Second one is me and some other folks playing, getting a streak of 5, and on the next map ending up with a streak of 2 again.
Also, if you play with your friends but you're not in a party with them, this merging can cause you getting split.
Repro Chance: 50%
Steps for Bug Repro:
1. Get a Winstreak in Expeditions
2. Hit replay/random map after winning the map
3. When then get sorted into another players game that is already open, see after winning that match that your winstreak got reset / aligned to the matchstreak of the player you got sorted to
Clips:
1: https://www.dropbox.com/s/b6ftljts9q085dy/clip1.mp4?dl=0
2: https://www.dropbox.com/s/hihri9t69t9ofu1/clip2.mp4?dl=0
Expected Results: Not loosing the winstreak, as you stay in particular chaos tier and kept winning