I play Blockland windowed, and sometimes it just tabs out at random, it doesn't fully minimize out of view. It just doesn't respond to keyboard controls (but it renders the cursor moving across it). So, I can SEE the game, it's just not receiving most input. Like when have two different windows and you click on one, the other one just doesn't process input, while the other one does. The same thing is happening with Blockland and I believe the console, except I never click outside the window.
This wouldn't be a big problem if when I tried to click back into the window, it just stops responding, and when I'm hosting, it forces everyone to disconnect. It doesn't respond for about 40-60 seconds, it's extremely irritating.
*Note, playing in full screen doesn't work either, as it somehow selects the game console and makes it appear over blockland, and minimizes it.