Brian,
I took the file and loaded it. First thing I did was test as you configured it. Everything worked fine. Then, I turned off the OUTPUTS I configured on Pins 8 & 9 on Port 1 and tested again. Everything works as well.
I looked for changes you had made in the file, and noticed the 5 micro second entries in both Step and Direction, but did not notice other changes. Are there other you entries you made that I did not recognize??
Thanks for your time and attention. I appreciate it!!
David