Problems with Ctrl hotkeys

That’s a bug report if ever I’ve heard one. Submit a bug report https://unity3d.com/unity/qa/bug-reporting

Hi there! Can you please file a bug report and list the case number here?

It looks like a bug on first glance, but I just wanted to ask, are you sure it isn't something to do with the keyboard layout? I personally had issues with the Korean keyboard layout because when you switch to it, one of the ctrl keys gets reassigned to a different function and is no longer considered a "ctrl" button. Again doesn't look like that at first glance, esp. because it's working differently between versions but who knows.

In 2018.2 we changed the backend for how keyboard shortcuts are handled, so if this appeared at that time, it is most likely a bug related to it.