Getting error when going to network sites from other subsites

First off, I like this plugin so far! It’s pretty amazing except for one little issue-

So I am using a multisite network. There are 4 domains- we’ll just call them domain1.com, domain2.com, domain3.com, and domain4.com. domain1.com is the network “main” domain. When I go to any of the other domains from domain1.com, it works great! But when I go to domain3.com or anything not domain1.com, and try to login to any other site except domain1.com, it says something like “Single sign on was attempted with incorrect nonce” or something like that. I can’t get the error anymore after signing into the other domains from domain1.com.

Just reporting this bug in the hopes you can fix it in a future update- this plugin is worth money just for what it can do, and I’m glad it’s free!