Hi Spiditha,
Good day!!
Xcopy is a OS command used to copy folders from one location to other.
I guess there might be some parameter altered in Agentparm.txt,
could you please compare with Agentparm.txt on a machine where Xcopy is working fine,
which would throw more clues in fixing this.
If above doesn't help much, please raise a case with CA support.
Best Regards,
Shiva Krishna. K