Doesn't work with Domain Mapping

When I enabled the plugin, the plugin works very well. Even when its network enabled. The problem I have is that my extra sites are loading using other domains and that they keep getting logged out after visitng the main site.

Let me clarify this:

Basically I’m in subsite.domain.com/wp-admin/
I go to subsite.com. Meanwhile domain mapping will automatically login for me.
When I go back to subsite.domain.com/wp-admin/ I need to login again.

Help guys?

https://ww.wp.xz.cn/plugins/prevent-concurrent-logins/