Welcome to the Centrify forums. To add a bit to what
We highly-encourage you to stay as current as your environment allows given that not only you are missing out on features, enhancements and bug fixes, but also in security updates. The product has changed significantlyin the past 5 and a half years since this release.
As far as your inquiry goes, make sure you explain if there was no delay with sudo before. If that was the case, most likely an environmental change was introduced that has caused the delay.
R.P