Pourquoi mon cache Redis ne renvoie-t-il que des données partielles

func (usr *UserImplementation) GetAllUsers(ctx context.Context) ([]models.User, error) {

    cachedUsers, err := databaseapi.Redis_CacheDB_Api()
    if err != nil {
        return nil, fmt.Errorf("error connecting to Redis cache: %v", err)
    }

    // pipe := cachedUsers.TxPipeline()

    cachedData, err := cachedUsers.Get(ctx, "users").Result()
    if err != nil && err != redis.Nil {
        return nil, fmt.Errorf("error retrieving cached data: %v", err)
    }

    if cachedData != "" {
        // Data found in the cache, return the cached data
        var cachedUsers []models.User
        err := json.Unmarshal([]byte(cachedData), &cachedUsers)
        if err != nil {
            return nil, fmt.Errorf("error unmarshaling cached data: %v", err)
        }
        return cachedUsers, nil
    }

    users, err := usr.pg.Postgres_DB_Api().DB.GetAllUsers(ctx)
    if err != nil {
        return nil, fmt.Errorf("error: %v", err.Error())
    }

    cacheData, err := json.Marshal(users)
    if err != nil {
        return nil, fmt.Errorf("error marshaling data for caching: %v", err)
    }

    expiration := time.Hour

    err = cachedUsers.Set(ctx, "users", string(cacheData), expiration).Err()
    if err != nil {
        return nil, fmt.Errorf("error caching data: %v", err)
    }

    return models.DatabaseUsersToUsers(users), nil

}

package main

import (
    "context"
    "encoding/json"
    "fmt"
    "time"

    "github.com/redis/go-redis/v9"
    "gorm.io/driver/postgres"
    "gorm.io/gorm"
)

type user struct {
    ID        int    `json:"id"`
    FirstName string `json:"first_name"`
    LastName  string `json:"last_name"`
}

func main() {
    // 1. instantiate clients
    dsn := "host=localhost port=54322 user=postgres password=postgres"
    db, err := gorm.Open(postgres.Open(dsn))
    if err != nil {
        panic(err)
    }
    redisClient := redis.NewClient(&redis.Options{
        Addr:     ":6379",
        Password: "",
        DB:       0,
    })

    // 2. automigrate objects & seed dummy data
    db.AutoMigrate(&user{})
    db.Create(&user{ID: 1, FirstName: "John", LastName: "Doe"})
    db.Create(&user{ID: 2, FirstName: "Suzy", LastName: "White"})

    // 3. attempt to retrieve from cache
    var users []user
    cachedUsers, err := redisClient.Get(context.Background(), "users").Result()
    if err != nil && err != redis.Nil {
        panic(fmt.Errorf("err retrieving cached data: %v", err))
    }
    if cachedUsers != "" {
        if err := json.Unmarshal([]byte(cachedUsers), &users); err != nil {
            panic(fmt.Errorf("err while unmarshaling data: %v", err))
        }
        fmt.Println("users taken from Redis")
        for _, v := range users {
            fmt.Println(v)
        }
        return
    }

    // 4. retrieve from the DB
    if err := db.Model(&user{}).Find(&users).Error; err != nil {
        panic(fmt.Errorf("err while retrieving from DB: %v", err))
    }

    // 5. set the key within the cache
    rawUsers, err := json.Marshal(users)
    if err != nil {
        panic(fmt.Errorf("err while marshaling users: %v", err))
    }
    if err := redisClient.Set(context.Background(), "users", rawUsers, time.Minute*15).Err(); err != nil {
        panic(fmt.Errorf("err while setting key in cache: %v", err))
    }
    fmt.Println("users taken from DB")
    for _, v := range users {
        fmt.Println(v)
    }
}