All the manipulators disappeared, move/rotate/scale handles are invisible. How to fix this?

#1

I’m not sure if I’ve pressed something wrong or if it’s a bug. That never happened before.
Restarting the app doesn’t help.
Reloading settings from the backup does help, but I’d rather not have to resetup all the hotkeys and customizations.
What could I have changed that caused this issue?

#2

The manipulators can be toggled on and off in the display menu (ctrl shift m)

#3

Thank you very much, that was it! I have no idea how I’ve managed to accidentally hit that hotkey =)