[BUG] Unity blocks my keyboard and don't let me type from time to time

As the title say, from time to time Unity decides to block my keyboard and don't let me use it inside the editor. I click something inside the inspector, but cant type anything in it, no text or numbers. If it is a float or int I can still use the mouse to change it and those changes do take effect in the scene. If I enter play mode, the game runs normally but any inputFields I encounter have the same problem, they cant be filled because it doesn't detect the keyboard.

This bug requires me to restart Unity 8 times a day more or less, just to be able to change variables. I started noticing the bug in version 2018.3.12f1 but recently moved to 2019.1.7f1, but it still happening. It does take time for it to happen so I guess I can live with it, but it's the most annoying stuff I have ever encountered in this program.

If someone have the same problem or know how to solve it, please comment.