AutoBackUp with EncryptedSharedPreferences failing to restore

I am using EncryptedSharedPreferences to store user information locally (see this if you are not familiar). I have implemented AutoBackUp with BackUp rules. I backed up the preferences, cleared data on my app, and attempted to restore the data (following the steps outlined for backup and restore).

Looking at Device File Explorer in Android Studio, I can confirm that my Preferences file is being restored (it is properly named and there is encrypted data in it). However, my app functions as if the preferences file does not exist.

What am I missing?

Preferences code:

class PreferenceManager(context: Context) {
    companion object {
        private const val KEY_STORE_ALIAS = "APP_KEY_STORE"
        private const val privatePreferences = "APP_PREFERENCES"
    }

    // See https://developer.android.com/topic/security/data#kotlin for more info
    private val sharedPreferences = EncryptedSharedPreferences.create(
        privatePreferences,
        KEY_STORE_ALIAS,
        context,
        EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
        EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
    )

    init {
        //val all = sharedPreferences.all
        //for (item in all) {
            //Log.e("PREFERENCES", "${item.key} - ${item.value}")
        //}
    }

    @SuppressLint("ApplySharedPref")
    fun clear() {
        // Normally you want apply, but we need the changes to be done immediately
        sharedPreferences.edit().clear().commit()
    }

    fun readBoolean(key: String, defaultValue: Boolean): Boolean {
        return sharedPreferences.getBoolean(key, defaultValue)
    }

    fun readDouble(key: String): Double {
        return sharedPreferences.getFloat(key, 0f).toDouble()
    }

    fun readString(key: String): String {
        return sharedPreferences.getString(key, "")!!
    }

    fun removePreference(key: String) {
        sharedPreferences.edit().remove(key).apply()
    }

    fun writeBoolean(key: String, value: Boolean) {
        sharedPreferences.edit().putBoolean(key, value).apply()
    }

    fun writeDouble(key: String, value: Double) {
        sharedPreferences.edit().putFloat(key, value.toFloat()).apply()
    }

    fun writeString(key: String, value: String) {
        sharedPreferences.edit().putString(key, value).apply()
    }
}

I am not implementing a BackupAgent currently.