Michael,
I have seen these in UN V3 with Enterprise 10.8.1 & Pro 2.7.4. These are the individual components that make up the template. It looks like you have at least 4 features that make up the 'Reduced Pressure Zone Assembly' template.
Here is an example from my organisation's electric utility network.
Not sure how to fix it but know where there come from. Sounds like a bug to me.
Good luck