Unable to Update Membership Plugin

I am trying to upgrade Membership Plugin from version 3.4.6.1 to the current version 3.5.0.8.

the Dashboard tells me to "Upgrade to Update" then I click on that which brings me to the wpmudev site where I click on upgrade Plugin and specify which website to apply it to, only to be thrown back to the Dashboard which tells me to "Upgrade to Update"

How can I get out of this infinite loop??

Yes, I am a paid member of this service.

THANK YOU.