When you press Ctrl+C at the same time to open the console, it sometimes reads just the C and opens the Citizens menu. To get the console to open reliably, you have to start holding Ctrl and then press C, which feels very awkward.
When you press Alt+Z at the same time to hide the UI, it sometimes reads the Z seperately and both hides/shows the UI and opens/closes the zoning bar. For a long time I didn’t realize that was what was happening and I was just annoyed that sometimes the grid showed back up when I hid the UI to take screenshots. Starting to hold Alt and then pressing Z just toggles the UI more reliably, but again this is awkward.
Right now, I don’t think this is unintended behavior even if it is annoying, so I’m not filing it as a bug report. It’s just a little thing - and I imagine it would take a lot of work behind the scenes - but I would love to see this fixed some day.