I played a mixture of quickplay and junkenstein to grind out games. I’m currently almost done with the skin but the progress is now stuck at 7 out of 9. It’s been stuck for a couple games which both were wins so both should have given me the 2 games to finish the progress.
Update: It seems logging out and back in again fixed it. I still had 7/9 when I logged back on but winning another game progressed like it should have.