Actions and Variables are Duplicated when I create new project from template

This is unfortunately a known issue.  I reported on it here:

Duplication Issues in Adobe Captivate Cp7 and Cp8 Templates | Infosemantics Pty Ltd‌

As far as I am aware, the issue still exists even in Captivate 9 if you create a template that has Advanced Actions and then those actions are used by any slides in that template.  When you create a CPTX file from that template the Advanced Actions and Variables are duplicated by about the same number of times the original Advanced Action is used.

You can test this by creating a simple project with two slides, one variable, and a Standard Action that assigns that variable with some value. Set the On Slide Enter event of the second slide to Execute the Standard Action. Save the project as a CPTL template and then use that template to start another CPTX project file.  When you check the list of Variables and Advanced Actions you will find that there is one duplicate of each.