Simulated membership is denying access to protected URLs on that membership

When I enable the “Test Memberships” mode, if I go to a protected page that has been protected for a certain membership using the “URL Restrictions” add-on, the page is displayed as protected content when it shouldn’t.

On the Simulation Overview box I get this message:
“Access denied by System Membership” and “Denied by Rule: URL Restrictions” even as viewing it using the membership for which this content has been protected.

I tried running a plugin/theme conflict test, but the issue is still there.