ArrowChat

I noticed while chatting with a friend through ArrowChat that if I didn't navigate through the site I was using it on, after a few minutes I wouldn't be able to send messages. If I simply refreshed the page or navigated to a new page, it would start working again.

Is this normal behavior with ArrowChat? I don't believe my session timed out or anything and I'm not using any kind of private browsing mode. I could still receive messages from the other user I was chatting with.

My online timeout is 45 seconds
Heartbeat 5 seconds
Buddylist heartbeat 45 seconds
Idle time 1 minute

I'm using it with vB.

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