Why does my car revert to the default one in Rocket League Sideswipe?

We are aware of an issue in Rocket League Sideswipe where players may see the wrong car body after they load into a match, different stickers, emojis, and chat phrases other than the ones they selected. Additionally, players affected by this may also see that the playing field is mirrored. We are investigating this, and in the mean time if you are affected, please try reinstalling the game.