Problem with building and packing Windows app

Hi! I am building an app for both android and windows right now. Android works fine, as always :slight_smile:, windows almost works fine, as long as I deploy it with Visual Studio on the local machine, if I pack it and download it to my windows tablet, it looks like hell :stuck_out_tongue: and the select elements do not work at all.

It works fine if I run it in the browser(edge) on the tablet. Someone has any idea of what I could do wrong?

The tablet has Windows 10 Pro so it should be supported.