We recently started on odoo v16 and the Internal transfer account is not available in Settings>Accounting>Default accounts on Odoo v16 on admin user.

As a result, when trying to save any internal transfers, we face this error: 

Odoo v16 docs say it should be available in accounting settings and it also shows on demo.odoo.com 

Please advise if the admin account is missing any permission, it has the role of "Accountant" for accounting.