Safari and Chrome v83+ block third-party cookies automatically. You should enable third-party cookies to make sure iManage works in incognito mode. Below is a step-by-step guide on how to do this:
Look for the eye icon to the right of your browser’s address bar.
2. Click the eye icon to get the following pop-up. Press the “Site not working?” link to get to the 3 party cookies enablement menu.
3. Click “Allow cookies", the browser should then refresh automatically and let you in.