This usually happens when the `enableEdit` setting is set to `false` for the order type.
How to fix it:
1. Go to `Configuration → Order Types → [Your Order Type]`
2. Set `enableEdit` to `true`
3. Save and publish your changes
Once this setting is enabled, the Payment and Shipment tabs will be visible on the order details page.
Example
Order with enableEdit set to false:
Order with enableEdit set to true:
Related to