On my US keyboard, the key to the left of 1 is the `/~ key. Unmodified, the character is `. With Shift, the character is ~. I'll use `/~ to describe the key itself.
The keyboard shortcut for Shift to Next View is, by default, CMD+`. When I press the CMD+`/~ keys nothing happens. When I press SHIFT+CMD+`/~ I get the correct response.
When I change the keyboard shortcut to SHIFT+CMD+~, the opposite occurs. Pressing CMD+`/~ then produces the desired result.
I know sometimes third party software could override some global key commands but I haven't noticed any other key commands not working. For instance, CMD+S will Save and CMD+SHIFT+S with Save As.