Download assistant: Cancel doesn't work?

I’m installing Cubase 11, and individually clicking the install button works fine. What I wanted to do was use the Install All button after disabling a few products I don’t want to install. However, the drop down menu choices, Cancel and Open Folder, do nothing when clicked - not even dismiss the menu.

Am I missing something here? Would appreciate any insight on how to fix this as it’s tedious to go through and install One. Product. At. A. Time.

Running Windows 10 / 64 bit, fully patched.