Break command specifying first point is not working. Lisp

[cadnub]

I am using (command "_.BREAK" pause "_F" "0,0.3" "0,-0.3")

 

On the pause I am selecting a vertical line that spans well past the first and second point.

When I got run this command and I select the line, I get this error 

BREAK
Select object:
Specify second break point or [First point]: F
Specify first break point: 0,.3
Specify second break point: 0,-.3
Command: nil

 

It doesn't break how I expect it to. If I run this command manually as in I manually type in the first and second points, it works but as soon as I try to run that single command line, it doesn't break properly. This is eventually part of a bigger lisp routine but I am getting hung up on this. Any thoughts?