Bug Input.inputstring "F" key missing

So every key works fine and reports correctly except for F. When I press F the debug reports blank, for every other key it reports their letter.

Code (CSharp):

1. void Update()
2.     {
3.         if (Input.anyKeyDown)
4.         {
5.             Debug.Log(Input.inputString);
6.         }
7.     }

Using Unity 2019.3.14f, the bug occurs in my game project and in a new blank project. Seems very random!

 

So this might sound weird but... try a different keyboard. I have an issue with one of my keyboards where I can type the number '8', but if I try to use it in Unity or in a key tester like https://unixpapa.com/js/testkey.html it actually only gives a KeyUp event and not the KeyDown :O.

 

Thanks for suggesting that but it works fine on that key tester website and I've just tested this again on a new computer, new keyboard, new project, older version of Unity = same bug happens.

 

Ah, oh well. Was worth a shot. The other thing I can think of is maybe the editor itself is capturing the input? Does the bug happen if you make a build? It might only be in the editor.

 

Ha yep you're right. Works fine in a build so must be an Editor thing. Still seems like a bug that should be fixed though.

 

I wasn't aware of it, but it appears that "F" by itself is a default Unity hotkey. Probably related I would assume.

https://docs.unity3d.com/2017.3/Documentation/Manual/UnityHotkeys.html

If you're running a newer version of Unity you could see if it is one of the hotkeys which can be remapped. I think the shortcut manager was added around 2019.1.

https://docs.unity3d.com/Manual/UnityHotkeys.html

(Yes I just linked two different versions of the same manual page, since for some reason they contain completely different information)