Using Photon in Unity after leaving room user can't connect to room by name

Users connect to lobby:

private void Start()
{
PhotonNetwork.ConnectUsingSettings();
}
public override void OnConnectedToMaster()
{
PhotonNetwork.JoinLobby();
SceneManager.LoadScene("Lobby");
}

Then users create room or enter in a room by its name

private Dictionary<string, RoomInfo> _roomList = new Dictionary<string, RoomInfo>();
private bool CheckNullOrEmpty(string name)
{
return !string.IsNullOrEmpty(name);
}
private bool CheckServerAvaliable(string qwe)
{
bool isAvaliable = true;
foreach (var item in _roomList)
{
RoomInfo info = item.Value;
if (info.Name == qwe)
{
isAvaliable = false;
}
}
return isAvaliable;
}
private void SetNickname()
{
PhotonNetwork.NickName = _nickname.text;
PlayerPrefs.SetString("name", _nickname.text);
}
private void CreateRoom()
{
RoomOptions roomOptions = new() { MaxPlayers = _maximumPlayers };
PhotonNetwork.CreateRoom(_createServer.text, roomOptions);
}
public void TryCreateRoom()
{
if (CheckNullOrEmpty(_createServer.text) && CheckServerAvaliable(_createServer.text) && CheckNullOrEmpty(_nickname.text))
{
SetNickname();
CreateRoom();
}
else if (!CheckNullOrEmpty(_nickname.text))
{
_errorText.SetText("Nickname cannot contain only spaces or be empty");
}
else if (!CheckServerAvaliable(_createServer.text))
{
_errorText.SetText("The name of the room is occupied");
}
}
public void TryJoinRoom()
{
if (!CheckServerAvaliable(_joinServer.text))
{
SetNickname();
PhotonNetwork.JoinRoom(_joinServer.text);
}
else if (!CheckNullOrEmpty(_nickname.text))
{
_errorText.SetText("Nickname cannot contain only spaces or be empty");
}
else if (CheckServerAvaliable(_joinServer.text))
{
_errorText.SetText("There is no room with such name");
}
}
private void UpdateCachedRoomList(List<RoomInfo> roomList)
{
for (int i = 0; i < roomList.Count; i++)
{
RoomInfo info = roomList[i];
if (info.RemovedFromList)
{
_roomList.Remove(info.Name);
}
else
{
_roomList[info.Name] = info;
}
}
}
public override void OnRoomListUpdate(List<RoomInfo> roomList)
{
UpdateCachedRoomList(roomList);
}

Everything works well, then users leave room and enter lobby:

  public void Leave()
{
PhotonNetwork.LeaveRoom();
SceneManager.LoadScene("Lobby");
}

In lobby creating room works fine, but entering to room doesn't work, i get - There is no room with such name.
I commented verification of server existing, and then user connected, i don't understand what is the problem in verification

Solved the problem by simple adding

public override void OnConnectedToMaster()
{
if (!PhotonNetwork.InLobby)
PhotonNetwork.JoinLobby();
}

• The issue lies in the order of your conditionals. Currently, you are checking if the server is available (!CheckServerAvaliable(_joinServer.text)) first, and then checking
• if the nickname is empty or contains only spaces (!CheckNullOrEmpty(_nickname.text)), and finally checking if the server is available again (CheckServerAvaliable(_joinServer.text)).

Since you are getting the "There is no room with such name" error, it indicates that the second conditional (else if (!CheckNullOrEmpty(_nickname.text))) is evaluated to true, and the error message is displayed.

 public void TryJoinRoom()
{
if (!CheckNullOrEmpty(_nickname.text))
{
_errorText.SetText("Nickname cannot contain only spaces or be empty");
}
else if (!CheckServerAvaliable(_joinServer.text))
{
SetNickname();
PhotonNetwork.JoinRoom(_joinServer.text);
}
else if (CheckServerAvaliable(_joinServer.text))
{
_errorText.SetText("There is no room with such name");
}
}

i think this code will solve your problem