Changing a trigger variable on sub-master template changes same variable on another sub-master template

Ok, I can't seem to figure out what is happening here. 

I have 4 master templates in my course - all variations of one but different colors. Each has a set of 3-4 sub-templates. I am doing this to differentiate quiz sections with different colors. Each section will have 25 questions and I am just adding a variable to count up one on this quiz sub template for each different colored master. The problem is, I have copied and pasted a trigger to count up 1 for a variable associated for each section (so I can say 1 out of 25 questions for each section). When I try to change the variable name in the template page of one sub template, it changes the variable in another as well. 

For example, I have 4 variables to hold a count for each section - PMQnum, CMQnum, SWQnum, and NMQnum. I try to change one template's trigger from PMQnum to SWQnum, but this changes the trigger variable not only on that subtemplate but also on the subtemplate under a different master slide (another section). I don't get it. Anyone seen this behavior before? 

Thanks, 

Tom

Image is of template masters and sub templates. Each master is a different color. The subs that are circled, I am adding a trigger to each to change the above variables, but when I change the blue trigger variable, it also changes the red - so I can never change each to it's own variable. I have never seen this before and have used this method before.