Ok cool beans at least a step in the right direction. The custom component is showing and starting to behave more correctly. As for putting it in a modal, hopefully you can still set the height and width of a modal, and sure that will allow it to show in the modal without you having to go full screen on the modal…or maybe at a few HTML paragraph spaces after the custom component to give it some room for the drop down. Weird but I see what you mean from your GIF.
There is quite a bit of information on this post:- New Multi or Single Select Component for UniversalDashboard which goes through the various ways you can read the value from what has been selected. I am sure one of those ways will work, just frustrating not knowing why your not getting the same results as me? Maybe it’s time I upgraded…