I often have a problem when I want to kick someone when hosting a custom game. There's 2 main problems:

1. When the lobby is full the game will automatically start which means I have very little time to actually click on someone and kick them
2. Kicking someone doesn't always work, even when doing it several times. It might have something to do with my first point.

This might not seem like a big deal but it can get frustrating.