Why all my hosted invasions fail?

I've been pvping in Oolacile Township, i usually can invade other players using dark orb pretty quickly and without problems (though i've been experiencing a few game crashes when on loading screen recently) but when i'm getting invaded is completely different , i see the fog gate pop up then nothing, after 3 minutes or so no ghost appear and it just fade away without letting me invade or use bf until i quit and load again, and yes even after the fog gate is gone i still cant use orb or bf. Is this normal or just me?

It happens when an invader disconnects from you while he is connecting to you.

This is also the cause of permanent gravelord curses, a gravelord disconnects while you are cursed.

But it happens everytime, maybe i'm jsut having bad luck... Thanks anyway

It happens a lot to me too. When you feel that you've been standing around in an area for too long without any invasions (and yet the fog gate persists and/or you can't use your invasion items), just quit and reload.