I do appreciate your feedback and support. A further screenshot is not needed. I only have one instance of this blueprint running and the context is correct. The screenshot shows the problem. I may be a new poster but I am a successful developer.
An Int of -6 is being evaluated if it is less than Zero, and it is coming up False. Everything else can be stripped away and the same issue persists. No wire flow because the program is paused as I step through the code. Hint: The big white arrow after the Loop condition is checked indicating code is paused, showing that this condition that is labeled as False. This code is run successfully many times before it gets to this point, only when a negative value is attempted is when it fails.
Additional thoughts welcome.