Login Issue with Google Chrome - PMS

[pshanew]

Do you use a pop-up blocker by chance?

Plex Web would like to sign in to your Plex account

Been having the same problem in Chrome across all my devices that sync my profile (Linux and Windows). But it would work if I opened an Incognito Mode window. I use Popup Blocker for Chrome. Disable it and everything works again, so yes, it is a popup blocker issue, at least in my case.