Test Scripts opened in Editor when run the Keyword test

To confirm are all scripts opening or some of them? You stated "All the scripts (Added in Keyword Test case) opens", your screen shot is only displaying the one you highlighted. Did you click on the script run button, or you right click on single script and selected run?

The default behavior is to not open the script editor when called from another script. Things you can try:

1. Close all open script tabs, save workspace, restart TestComplete
2. Validate corrupted settings, create new project and try to reproduce. Restore TestComplete default configuration by uninstall, reboot, install
3. Remove from the script any OpenFile, save script variable, or similar method
4. Remove debug events or error handlers

Forgot to add this, I created VERY simple KWTs that call scripts that simply call Log.Message("You Text Here");  which did not produce the what you see.  This is not a fair test however.  I would need to create my own project against a tested app and write my own code to run checks against the GUI and do other checks such as calling project variables.  Time I don't currently have.  Could you give us a peek or description of what your scripts are doing?

I am on Version: 15.74.33.7 x64.  What are you running?

I think I have seen this before.  We don't use KWTs anymore.  It seems your project doesn't need the KWT either.  What happens if you replace the KWT with a script function and run that instead?

I'm not able to reproduce this in v15.74.33.7. Since you are just calling script routines from keyword test, it might be best to use Execution Plan instead?