After an antivirus update we had some PItags that were not correct, but also didn't have the bad or stale label.
PI just interpolated between the last known point and the first point after the update.
Is it possible to configure the "stale and bad points" function of PI SMT in such a way it can detect these points. The values gradually decrease or increase, so there is no real flat line.
In the graph you see normal values for green and black, and interpolated for blue and purple.