Cannot Log in to Oxygen Feedback

Problem

I am having trouble logging in to the Oxygen Feedback application.

If the Oxygen Feedback server runs on HTTP, the value of a feedback.cookie.samesite.none property controls how the Feedback server sets the SameSite=None attribute on cross-platform cookies sent to the client. If the feedback.cookie.samesite.none property is set to true, it may cause login issues on certain browsers when running on HTTP.
Oxygen Feedback uses HTTP cookies to authenticate client requests and maintain session information. The authentication issue could be caused by the browser (or a third-party extension or plugin) rejecting the JSESSIONID authentication cookie. This cookie is used to store the current user's Session ID on the client side (in the browser).
Note: If the problem happens when trying to log on in a Private/Incognito session, the cause might be that your browser blocks third-party cookies in Incognito mode, by default (e.g. Chrome, Firefox).

Set the feedback.cookie.samesite.none property to false and restart the Oxygen Feedback server. For details, see Cross-Domain Cookies Settings.
Open your browser's Developer Tools and check to make sure the JSESSIONID cookie is present (e.g. in Chrome, go to the Application tab and select the Feedback URL entry in the left navigation pane (https://feedback.oxygenxml.com)).
If you have any browser extensions installed, it is possible for them to interfere with Feedback's authentication cookies. Disable all browser extensions and then try to log in again.