Many times when I want to type just an `, ~ or other dead key, it doesn't work when I press the dead key followed by space. It often works, but often not. I have been unable to find any rules for when this happens. I thus often press the dead key twice followed by backspace as that seems to work, but it's a lot of key presses. For ~ it is C+A+~+~+BACKSPACE...
Is other people experiencing this issue? And more importantly: found a way around it?