Cannot Create Access Levels

Hi there,

I have a WordPress multisite setup at

My first sub-site on this network, I had no problem created access levels, subscriptions, etc. with the Membership plugin.

Now, working on the second site in the network, I can't create access levels. Whether I use the Standard Wizard setup or manually create them, I get the success message that the level was created, but no levels appear in the access levels dashboard screen.

How can I fix this?