'US Stock Trader' exited again at 16:00 ET

This is just incredible. After all the fuss and problems ‘US Stock Trader’ has caused by repeatedly sending the exit signal at 16:00 it just happened again. What will it take for the vendor to correct this problem. It should be simple enough to change the code so that the system exits 5 minutes before the close. That raises another question: If the vendor is not able to do such a simple adjustment who knows what other serious problems might pop up in the future.

Agree. That trade should not have been allowed. I will reverse it since it happened at 16:00. Vendor will need to re-enter order for Monday’s market.