Steps to reproduce the issue

Joomla version 3.7.5
Frontend or backend, in article editor select Menu to insert a menu link, search for a menu item in the modal and select any menu item.

Expected result

Should write a link for the menu item at the cursor in the article window

Actual result

Does nothing. If you look at admin-items-modal.min.js this condition evaluates to true because Joomla.getOptions('xtd-menus') is undefined following a search:
if (!Joomla.getOptions('xtd-menus')) {
// Something went wrong!
window.parent.jModalClose();
return false;
}
Note, if you do not search for a menu item and select from the list of available items it works as expected. Therefore you can work around the problem by searching for the desired menu item, select said item, the modal will close, re-open the modal, your search query is retained and you can now choose the desired element.

System information (as much as possible)

Joomla version 3.7.5
running on linux shared hosting

Additional comments

my first defect submission, my apologies if I'm lacking any necessary info