Bug: UI doesn't close

On my main character, which uses Ask Mr. Robot quite a bit, when I go to close out the BIB copy/paste window, I can’t. I can’t seem to interact with the x in the top right and have to use the Escape key. On one of my alts, that hasn’t used the addon at all, I get the ‘this is the first time’ window, and when I try to click ‘continue’, nothing happens. Again, I have to use escape to close out the window and can never proceed to the next step, which is the copy/past window.

Do you have version 52 of the addon? Blizzard changed some things with addons behind the scenes with 7.3, so earlier versions will cause this issue.