Defense+ blank Application Path

Hi,
I was looking through Firewall > Advanced > Network Security Policy and found 4 items that were set to Custom but with no name and a blank Application Path.
I searched here at the forum and there is this thead but it does not give a definitive answer as to what they could be.
https://forums.comodo.com/empty-t31792.0.html
I decided it would be safe to Remove them and will see what pop-up I get in the future.

I then went to Defense+ > Advanced > Computer Security Policy and found 20 items that were set to Custom but with no name and a blank Application Path.
A search here did not find a definitive answer.
I am wary of removing any or all of these items in case I stop something important and cause myself a major headache.

Could someone please explain what these may be and how they came to be on the list.
Also, would it be safe to follow this procedure to try to find the item
Remove the no name items
Wait for a pop-up and tick Remember plus Allow it
Go to Defense+ to see if a new Blank item has been created

I have attached a screenshot (I hope) with 5 of the no name items listed but as I say there are 15 more lower on the list.
Note: I am not referring to * under All Applications.

All the best, woz of oz

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