The functionality you have outlined is as intended. User permissions in the Production editor (Wax word processor) are configurable from the backend. Here’s a link to learn more about Wax; Wax — Wax
What roles and workflow steps do you wish to achieve here?
UI to send the new manuscript version is a bit confusing
Are you referring to the authors/editors action to submit a new manuscript version or round of review, or something else?