DC and STB analysis reuse in larger sweeps

Hi,

I have observed that running a DC but especially STB analysis will provide different results, depending on whether it is part of a larger PVT sweep or singled out corners.

When running larger sweeps, does Spectre reuse information, in such a way that it can affect the end result? Is there some flag / option that can disable this behaviour?

Or is this some completely different phenomena?

BR,

Christian

Version numbers:
Virtuoso IC.6.1.8-64b.500.23
Spectre 21.1.0.303.isr5