I’m using EF Core 6.0 lazy loading
I have added the package Microsoft.EntityFrameworkCore.Proxies And I have added UseLazyLoadingProxies() in my DbContext

 protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            if (!optionsBuilder.IsConfigured)
            {
               optionsBuilder.UseLazyLoadingProxies().UseSqlServer("Server = SRV84; Database = BASE_DEMO1; User Id = sa; Password = Ab@123456");
                
            }
        }

This is my API:

 [HttpPost]
        public async Task<IActionResult> CreateUser(UserCreateDto oUserCreate) //UserCreateDto oUserCreate
        {
            var oUser = await _authorizationService.GetUserByUserName(oUserCreate.Username);
            if (oUser.Id > 0)
            {
                return BadRequest("Username already exists");
            }
            oUserCreate.Status = (int)StatusUser.Deactive;
            oUserCreate.CreatedDate = DateTime.Now;
            oUserCreate.ModifiedDate = DateTime.Now;
            oUserCreate.Status = (int)StatusUser.Deactive;
            var idUser = await _authorizationService.CreateUser(oUserCreate);
            if (idUser == 0)
            {
                await AddLogAsync(UserIdentity.FullName + ": create " + oUserCreate.FullName, OBJECT.USERS, (int)ActionLogs.Add, (int)StatusLogs.Error);
                return BadRequest("There was an error!");
            }
            await AddLogAsync(UserIdentity.FullName + ": create " + oUserCreate.FullName, OBJECT.USERS, (int)ActionLogs.Add, (int)StatusLogs.Success);
            #region Create new Userinfo   
            UserInfoCreateDto userInfo = new UserInfoCreateDto();
            userInfo.Address = oUserCreate.Address;
            userInfo.Email = oUserCreate.Email;
            userInfo.Avatar = oUserCreate.Avatar;
            userInfo.Phone = oUserCreate.PhoneNumber;
            userInfo.Sex = oUserCreate.Sex;
            userInfo.UserId = idUser;
            await BaseService.CreateAsync<UserDetail, UserInfoCreateDto>(userInfo);
            #endregion
            #region Create new Group   
            if (oUserCreate.GroupIds.Count > 0)
            {
                foreach (var item in oUserCreate.GroupIds)
                {
                    if (item > 0)
                    {
                        await BaseService.CreateAsync<GroupUser, GroupUserCreateDto>(new GroupUserCreateDto() { GroupId = item, UserId = idUser });
                    }
                }
            }
            #endregion
            return Ok();
        }

 [HttpGet]
        public async Task<IActionResult> GetUsers([FromQuery] UserGridPagingDto pagingModel)
        {
            var predicates = pagingModel.GetPredicates();
            var result = await BaseService.FilterPagedAsync<User, UserGridDto>(pagingModel, predicates.ToArray());
            if (pagingModel.GroupId > 0)
            {
                if (result.Data.Count > 0)
                {
                    for (int i = 0; i < result.Data.Count; i++)
                    {
                        result.Data[i].IsCheck = result.Data[i].LstGroupIds.Contains(pagingModel.GroupId);
                    }
                }
            }
            return Ok(result);
        }

When I post ‘User’ from API, my database cannot update, but I could get data.

I try to delete my database ,comment my connection string & restart my computer.But I still could get data that I added before. This is what I see in the terminal.

16' with options: using lazy loading proxies
info: Microsoft.EntityFrameworkCore.Database.Command[20101]
      Executed DbCommand (52ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
      SELECT COUNT(*)
      FROM [Users] AS [u]
      WHERE [u].[DeletedUserId] IS NULL
info: Microsoft.EntityFrameworkCore.Database.Command[20101]
      Executed DbCommand (52ms) [Parameters=[@__p_0='?' (DbType = Int32)], CommandType='Text', CommandTimeout='30']
      SELECT [t].[Id], [t].[UserName], [t].[FullName], [t].[c], [t].[Status], [t].[CreatedDate], [t].[DeletedUserId], [t].[c0], [g].[GroupId], [g].[Id]
      FROM (
          SELECT TOP(@__p_0) [u].[Id], [u].[UserName], [u].[FullName], (
              SELECT TOP(1) [u0].[Email]
              FROM [UserDetail] AS [u0]
              WHERE [u].[Id] = [u0].[UserId]) AS [c], [u].[Status], [u].[CreatedDate], [u].[DeletedUserId], (
              SELECT TOP(1) [u1].[Phone]
              FROM [UserDetail] AS [u1]
              WHERE [u].[Id] = [u1].[UserId]) AS [c0]
          FROM [Users] AS [u]
          WHERE [u].[DeletedUserId] IS NULL
          ORDER BY [u].[Id] DESC
      ) AS [t]
      LEFT JOIN [GroupUser] AS [g] ON [t].[Id] = [g].[UserId]
      ORDER BY [t].[Id] DESC

What should I do now