Forum Error when replying to thread
 

I'm running vb 4.2.0 patch level 2..

I get the following error:
Fatal error: Call to undefined function build_thread_counters() in ///includes/functions_newpost.php(784) : eval()'d code on line 21


I recreate it like so:
I was able to recreate the failure by first clicking on the standard "reply to thread" button, then per my test, just typed "test" to see what would happen.

I then clicked on the go advanced button, then clicked on the submit message button. Instant error message even though the reply was posted to the thread correctly.

If I click on the quick "Reply" button, no error.