Recent Players - doesn't populate consistently

The recent players menu doesn't seem to populate consistently. I've made friends with randoms in-game only to lose their username, with no way to recover the information. This is sad as I'll never get to play with those cool players again! 

This is somewhat mitigated by the fact that you can add your teammates in the post-game report, but once you skip past that, you have to hope that the recent players list worked correctly that game.

Would be great to see a fix here!