Room - RxJava : getByName() query not working - android-room

Question

I'm using Room for persistence in my app. I have a Player table, which has a name and matchesPlayed column.
When a match is played by a Player, I would like to increment matchesPlayed if it was played by an existing Player, or create a new Player otherwise. In order to determine this, I created a SQL query getPlayerByName(name: String) which should return us the Player if it exists. When I run the query in the Database Inspector in Android Studio, everything works fine. However, when I run the same query in the app, it fails. Does anybody know what I'm doing wrong?
Player.kt
#Entity(tableName = "players")
data class Player(
#PrimaryKey val id: String,
val name: String,
#ColumnInfo(name = "matches_played") val matchesPlayed: String,
#ColumnInfo(name = "matches_won") val matchesWon: String
)
PlayerDao.kt
#Dao
interface PlayerDao {
#Query("SELECT * FROM $PLAYER_TABLE_NAME")
fun getAll(): Single<List<Player>>
#Query("SELECT * FROM $PLAYER_TABLE_NAME WHERE name = :name LIMIT 1")
fun getPlayerByName(name: String): Maybe<Player>
#Insert(onConflict = OnConflictStrategy.REPLACE)
fun insert(player: Player): Completable
}
PlayerViewModel.kt
#HiltViewModel
class PlayerViewModel #Inject constructor(
private val playerRepository: PlayerRepositoryImpl
) : ViewModel() {
...
private fun findAndInsertPlayer(
playerName: String,
playerWon: Boolean
) {
viewModelScope.launch {
val increment = if (playerWon) 1 else 0
playerRepository.getPlayerByName(playerName)
.subscribe(
{ player ->
// Handle Success
},
{
// Somehow, this block always gets called
}
)
}
)
}