Hello,
I just found a little UI bug: whenever you start searching for any character in the “Assign Devices to System” search box of a system device, it won’t return any results, and an orange alert icon with the text “invalid” shows up straight away.
Also, this search field only returns items that start with search term. So if you have a child device called: “the-cat-loves-mice”, the device would not be found if you type “cat”, “mice” or “loves”: it does when you search for “the” or “the-cat”
Selecting them from the list and adding child devices works without any problems
