Timing offset developed in minute trends

Jim Warner was running NDScope against a number of channels including H1:GRD-SEI_ENV_STATE_N. Every channel except 1 PEM channel showed a time shift of about 30 minutes when switching from second trends to minute trends. Raw data did not match minute trends either.

A restart of NDScope brought the data back in line.

NDS was h1daqnds1.

It seems unlikely NDS was serving data different than requested, so likely NDScope was requesting data from a different timespan than expected.