The "submit proposal' form has a validation rule for observing modes that says a mode id greater than zero (the initial value) must be selected for each observation in the proposal that is to be submitted to a cycle. The intention was that if at the point of clicking "Next Step" the form is not valid for observing modes then the Stepper will not move on, and the relevant error message is shown (using Mantine's form errors).
Currently, if the observing mode part of the form is not valid, clicking on "Next Step" prevents you going to the next step, fine, but no error message is shown, not fine.
The "submit proposal' form has a validation rule for observing modes that says a mode id greater than zero (the initial value) must be selected for each observation in the proposal that is to be submitted to a cycle. The intention was that if at the point of clicking "Next Step" the form is not valid for observing modes then the Stepper will not move on, and the relevant error message is shown (using Mantine's form errors).
Currently, if the observing mode part of the form is not valid, clicking on "Next Step" prevents you going to the next step, fine, but no error message is shown, not fine.