[WPMU DEV Dashboard] Permission problems accessing WPMUDEV Dashboard and plugin admin settings

We are having a problem with one of our admin accounts on our site and accessing the WPMUDEV dashboard, settings and upgrading any WPMUDEV plugin.

When logged in as admin user joreardon we can access the WPMUDEV dashboard and update any WPMUDEV plugins etc.

However when logged in as admin user dalereardon-admin we get a WP error saying we aren't authorised to access the page if go direct to it. The WPMUDEV options are all not showing in the menus when logged in as dalereardon-admin

Something must have gone wrong with permission settings I presume?

I have enabled access to our site for you within the dashboard plugin so you can take a look,

Thanks,

Dale.