the target bar keeps moving when i update

I’m new to p3 and i need help. Here’s my problem: After i made the baseline program(TP5A), i made a copy (PU01) as a program for update or current program. After copying the program i opened the newly created program (PU01) and i set TP5A as the target program (tools>project utilies>targets). I’ve done this in my trial program and it worked, meaning the target program is not moving everytime i update the current program. But now, everytime i update, the target bar is the same as the bar of the current program. I am very confused on what i have done. i followed the steps but it doesn’t work. what did i do wrong. Please help me if you have any suggestions. thanks.