Drupal 8 Multisite Logout Problems

Hi everyone!

I have a Drupal 8 multisite installation set up and working fine (on different ports) except for one issue. Two of my sites are:

If I browse to Site 1 and log in and then refresh any page on Site 2, I am automatically logged out of site 1. If I open Site 1 in one browser and log in, then open site 2 in another browser and log in, they work perfectly fine.

I assume this has something to do with cookies or session storage, but I’m at a loss at the moment. Anyone have any insight or ideas for me to research a bit? My Sys Admin skills are a little novice.


Drupal version: 

Source: https://www.drupal.org/taxonomy/term/1/feed