ERROR 500 bei Formular ohne Rendering-Stil speichern

[ips]

Your software Mautic 4.0.0
My PHP version is : 7.4
My MySQL/MariaDB version is (delete as applicable): MySQL 5.7 - SSD

Updating/Installing Errors
I am (delete as applicable): Installing / Updating
Upgrading/installing via (delete as applicable) : Web / Command Line

These errors are showing in the Mautic log :
“Expected argument of type “null or string”, “boolean” given” at /html/mautic_xy/vendor/symfony/form/Extension/Core/DataMapper/RadioListMapper.php line 49 {“exception”:"[object] (Symfony\Component\Form\Exception\UnexpectedTypeException(code: 0): Expected argument of type “null or string”, “boolean” given at /html/mautic_xy/vendor/symfony/form/Extension/Core/DataMapper/RadioListMapper.php:49)"}

My problem is :
Wenn in den KOMPONENTEN > FORMULARE im Formular die Einstellung RENDERING-Stil auf NEIN gestellt wird, dann auf SPEICHERN geht, kommt ERROR 500 (siehe Log)

If in the COMPONENTS> FORMS in the form the setting RENDERING style is set to NO, then goes to SAVE, ERROR 500 appears (see log)

Steps I have tried to fix the problem :

[taxi]

Hallo,

gleichen Fehler habe ich auch.
Er tritt auf wenn “Render style from Template” einmal verändert wird.
Das Formular lässt sich danach auch nicht wieder auf zurück auf “Render style from Template” Yes setzen.

Ich verwende die neueste Version 4.0.1.

[autiral]

Same problem here. Once a form is created, there is no way to make any change on it.