Managed Schedules are editable by assigned hosts?

We’re using Zoom Scheduler’s Managed Schedules feature to create a common event for several different users. Zoom documentation says that after assigning the Managed Schedule to hosts, assigned hosts won’t be able to edit the details of the event. However, we’re seeing that assigned hosts can edit anything they want to. None of the assigned hosts are account admins. Am I missing a setting somewhere?

I’m also noticing that changes to the Managed Schedule do not propagate to assigned hosts, unless we un-assign and reassign those hosts.