PGRT - IP SLA Jitter - Cisco 2911 IOS15.2

I have read some of the other questions but still not found an answer,

I am looking to capture Jitter on my PRTG and I have setup the router as required but I am unable to get PRTG to capture the traffic on my Cisco 2911.

I am running PRTG Network Monitor 9.1.3.1793. I have been able to capture Jitter on this PRTG but it was on a 280X series router running 12.2 IOS. Since then the commands have changed.

Ver 15.2 
IP SLAs entry configuration commands:
  icmp-echo    ICMP Echo Operation - WORKS
  icmp-jitter  ICMP Jitter Operation - DOES NOT WORK
  path-echo    Path Discovered ICMP Echo Operation - WORKS
  path-jitter  Path Discovered ICMP Jitter Operation - DOES NOT WORK
  udp-echo     UDP Echo Operation - WORKS
  udp-jitter   UDP Jitter Operation  - DOES NOT WORK

I am assuming its either MIB or OID's that need to be changed but I am not sure what the new information from the Cisco Router would be?