Property values are converted to Markup

Hello, would you share with us your SDC component definition and how you use it please ?

Here is the component. I noticed this problem with the menu property.

I was able to make it work by adding the |string cast in this line.

thank you.
may i have a copy of the exception you had please?

This is the error:

TypeError: Drupal\simplify_menu\MenuItems::getMenuTree(): Argument #1 ($menuId) must be of type string, Drupal\Core\Render\Markup given, called in .../modules/contrib/simplify_menu/src/TwigExtension/MenuItemsTwigExtension.php on line 42 in Drupal\simplify_menu\MenuItems->getMenuTree() (line 115 of .../modules/contrib/simplify_menu/src/MenuItems.php).

The reason is this in the following line from gcds-top-nav.twig, menu is Drupal\Core\Render\Markup instead of a string.

{% set items = simplify_menu(menu) %}

Thank you, now i see it clearly.
I will post an improvement to cope with it.

by the way, do you know the module sdc_devel?
that's not quite a good practise to use backend stuff from your twig sdc files, they are supposed to be quite "UI only".
but we could discuss that on the slack of ui patterns2 if you like.

I didn't know about sdc_devel. I will check it out.

Are you saying that it is not a good idea to call simplify_menu() in a SDC Twig file? Since SDC do not have preprocess, I don't see any obvious way of removing it.