TYPO3 Core

If I start a new form with the wizard, it will be displayed.

But my old forms, opened with the wizard, will not displayed. The shown only a empty Form, just the headline is displayed.

Here is the code of one of the old form:

dir = ltr
title = Kontaktanforderung
enctype = multipart/form-data
method = post
prefix = tx_form
confirmation = 1
postProcessor {
    1 = mail
    1 {
        recipientEmail = Hans-Georg@Althoff-Fam.de
        senderEmail = noreply@Althoff-Fam.de
        senderNameField = firstName lastName
        subject = Kontaktdatenanforderung Impressum
        message {
            success = Text
            success {
                value (
                                <h2>Danke für ihre Anfrage</h2>
                                <p>Ich werde sobald wie möglich mit Ihnen in Kontakt treten.</p>
                )
            }
        }
    }
}
10 = FIELDSET
10 {
    class = creq
    legend {
        value = Kontaktformular
    }
    10 = FIELDSET
    10 {
        class = creq fieldset-horizontal label-below
        10 = RADIOGROUP
        10 {
            class = creq fieldset-horizontal label-below
            name = sex
            required = required
            10 = RADIO
            10 {
                type = radio
                size = 10
                label {
                    value = Frau
                }
                layout (
                    <input />
                    <label />
                )
            }
            20 = RADIO
            20 {
                type = radio
                label {
                    value = Herr
                }
                layout (
                    <input />
                    <label />
                )
            }
        }
        20 = TEXTLINE
        20 {
            type = text
            name = titel
            size = 25
            label {
                value = Titel
            }
            layout (
                <input />
                <label />
            )
        }
    }
    20 = FIELDSET
    20 {
        class = creq fieldset-horizontal label-below
        10 = TEXTLINE
        10 {
            type = text
            name = firstName
            required = required
            size = 30
            label {
                value = Vorname *
            }
            layout (
                <input />
                <label />
            )
        }
        20 = TEXTLINE
        20 {
            type = text
            name = lastName
            required = required
            size = 30
            label {
                value = Nachname *
            }
            layout (
                <input />
                <label />
            )
        }
    }
    30 = FIELDSET
    30 {
        class = creq  fieldset-horizontal label-below
        10 = TEXTLINE
        10 {
            type = text
            name = street
            required = required
            size = 50
            label {
                value = Straße *
            }
            layout (
                <input />
                <label />
            )
        }
        20 = TEXTLINE
        20 {
            type = text
            name = streetnumber
            required = required
            size = 10
            label {
                value = Nr. *
            }
            layout (
                <input />
                <label />
            )
        }
    }
    40 = FIELDSET
    40 {
        class = creq fieldset-horizontal label-below
        10 = TEXTLINE
        10 {
            type = text
            name = zip
            required = required
            size = 10
            label {
                value = PLZ *
            }
            layout (
                <input />
                <label />
            )
        }
        20 = TEXTLINE
        20 {
            type = text
            name = town
            required = required
            size = 50
            label {
                value = Ort *
            }
            layout (
                <input />
                <label />
            )
        }
    }
    50 = FIELDSET
    50 {
        class = creq fieldset-horizontal label-below
        10 = TEXTLINE
        10 {
            type = text
            name = country
            required = required
            size = 66
            label {
                value = Land/Staat *
            }
            layout (
                <input />
                <label />
            )
        }
    }
    60 = FIELDSET
    60 {
        class = creq fieldset-horizontal label-below
        10 = TEXTLINE
        10 {
            type = tel
            name = phone
            required = required
            size = 20
            label {
                value = Telefon *
            }
            layout (
                <input />
                <label />
            )
        }
        20 = TEXTLINE
        20 {
            type = email
            name = email
            placeholder = Max.Mustermann@Domain.de
            required = required
            size = 40
            label {
                value = E-Mail *
            }
            layout (
                <input />
                <label />
            )
        }
    }
    70 = FIELDSET
    70 {
        class = creq fieldset-horizontal label-below
        10 = TEXTLINE
        10 {
            type = text
            name = company
            size = 66
            label {
                value = Firma
            }
            layout (
                <input />
                <label />
            )
        }
    }
    80 = FIELDSET
    80 {
        class = creq fieldset-horizontal label-below
        10 = TEXTAREA
        10{
            cols = 50
            rows = 5
            name = reason
            placeholder = Begründung für die Kontaktanforderung
            required = required
            label {
                value = Grund der Kontaktaufnahme *
            }
            layout (
                <textarea />
                <label />
            )
        }
    }
    90 = TEXTBLOCK
    90 {
        text (

    <p>* Diese Felder müssen ausgefüllt werden.</p></br>

        )
    }
}
20 = SUBMIT
20 {
    type = submit
    name = 10
    value = Formular absenden
}
rules {
    1 = required
    1 {
        showMessage = 
        message = Required
        error = Diese Angabe wird benötigt!
        element = email
    }
    2 = email
    2 {
        showMessage = 
        message = (john.doe@domain.com)
        error = Dies ist keine gültige E-Mail-Adresse!
        element = email
    }
    3 = length
    3 {
        showMessage = 
        message = The length of the value must have a minimum of %minimum characters
        error = Der Text enthält weniger als %minimum Zeichen
        minimum = 20
        maximum = 500
        element = reason
    }
    4 = required
    4 {
        showMessage = 
        message = Required
        error = Eine Angabe wird benötigt!
        element = sex
    }
}

I am not from the core team, just a user reading the activity stream on the forge.
If you recreate one of the forms using the wizard and compare the typoscript output with the typoscript from the form you recreated, can you see any differences when you compare them?

The RADIO elements require a value attribute. But that's only true when the RADIO element is within a RADIOGROUP element.

Patch set 2 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/48591

Without the patch: when a value of the radiogroup/ checkboxgoup is missing, the wizard "dies".
With the patch: even when a value attribute is missing the wizard still works as expected.

For testing:

Step 1¶

UserTS: setup.default.tx_form.showWizardByDefault = 0

Step 2¶

prefix = tx_form
confirmation = 1
postProcessor {
    1 = mail
    1 {
        recipientEmail = 
        senderEmail = 
    }
}
10 = RADIOGROUP
10 {
    class = fieldset-subgroup
    legend {
        value = Edit this legend
    }
    name = 
    10 = RADIO
    10 {
        checked = checked
        type = radio
        label {
            value = Option 1
        }
    }
    20 = RADIO
    20 {
        type = radio
        value = Value 2
        label {
            value = Option 2
        }
    }
    30 = RADIO
    30 {
        type = radio
        value = Value 3
        label {
            value = Option 3
        }
    }
}

Step 3¶

User TS: setup.default.tx_form.showWizardByDefault = 1

Patch set 1 for branch TYPO3_7-6 of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/48721