There is no F value after the n11 g01 y.25 so Mach can`t move the axis, try opening your Post Processor in Notepad and looking at the lines shown below and checking if they all have "feed_rate" in them as shown below.
If not there then alter the lines to the same.
These lines are from the Mach3 Plasma Post Processor so should work
55. Line feed move XYZ.
n,feed_move,x_f,y_f,feed_rate
56. Line feed move XY on Leadin.
n,feed_move,x_f,y_f,feed_rate
57. Line feed move XY on Leadout.
n,feed_move,x_f,y_f,feed_rate
Regards
Rob