DHCP Options - Option 60, 66 - not working

I am getting “ERROR: Internal Server Error” in gui when adding.
But in cli it’s working.

ip dhcp-server option add code=1 value="'ABC'0x10" name=test

I have a question in this in the forum.. now with some success, see that i can add in cli not in gui(web with chrome)

http://forum.mikrotik.com/t/dhcp-options-solved/63431/1