Problem with ICQ transport?

Question

Google Talk

Hello. I have ICQ transport attached to Google Talk.
It seems to be working fine, but at some point an incomprehensible glitch appears. If earlier, when you exited Google Talk, there was a logout from ICQ, but now, the ICQ account always "hangs" online. However, it works like a feature, when you are not in the conversation, and someone writes to ICQ, a notification arrives in the mail: "These messages were received while you were not online."
Who knows what it is connected with?