Hello!
“I went to the page /wp-login.php on first device and logged in. In the Active Sessions I saw this information. Then I did the same on another device, I saw the message “FORBIDDEN: You’re not allowed to initiate a new session because your maximum number of active sessions has been reached”. But nothing chaged In the Active Sessions.”
That’s exactly the expected behavior: this screen shows only current opened sessions. If you can’t open a session (whatever reason it is for), it can’t be shown in current session because it doesn’t exist.
“I thried the same with Lifter login page. The situation is the same.”
Do you mean the behavior is exactly the same as the previous test with this one? If so, all is working correctly, I doesn’t understand…