can you post your code snippet and how you are calling it?
Sure I can...it is simple python running on the device using the saturn library:
cmd = saturn.Command('localhost',50007)
rc = cmd.sendcommand('tag.db.scan_tags(500,true)')
rc at the end of this is an array of values representing the tags. I will note that I am getting the same results issuing the plain command
in the Fx9500's Command Line screen in its administrative settings.