Tom Cat - Do Not Reset Active Sessions Yet Doesn't Display Authorization Page?

Question

Java

Hello everyone, I've run into this problem.

Application: Vaadin+SpringBoot, Apache Tomcat/9.0.27, java 1.8

Periodically stops loading the application's start authorization page (i.e. it tries to load for a very long time and to no avail). But if you enter the ApacheTomcat admin panel and cut all sessions, then the page starts to load normally or it helps to switch to incognito mode in the browser.
The browser is predominantly Chrome.

Please help.

As far as I understand, the information about the user session that Apache picked up is stored as a Cookie in the user's browser.
If something happened to the session, the user's browser will still try to connect to it, because it stores information with the identifier of the old session in the Cookie