showErrors and errorPlacement functions of jQuery Validate have been overridden in Pages core. As a result, the way error messages are displayed will differ depending on the form layout style you've declared in the code
Standard way of showing error messages. Will appear on any form except for forms with attached groups.
Recommended to use with Pages default form style having attached elements with .form-group-attached wrapper. The error messages will appear in the form of popovers.