NTP Time service check problems after 1.6 to 2.0.0p12.cee upgrade

As an example, when I run

OMD[corp1760]:~$ cmk -d moldycrow.bo.radicalconvergence.com | grep ntp.cached
<<<ntp:cached(1634160172,30)>>>

Multiple times I’d expect that timestamp to increment every >= 30 seconds. It doesn’t change.