Does a change in a Dynamic Threshold reset the training data?

We rarely use dynamic alerts but someone wanted to test for it. We set something up but accidentally left the polling interval at 5 (50 minutes). It happened to be set that way for a few weeks before we got around to testing an actual event that exceeded the band we set. But it DID work, it just took almost an hour to get the alert.

Well today when we realized this, I tweaked the dynamic threshold, mainly just changing it to 1 interval (2 minutes) because we want the shortest possible response. But the engineer also dropped the bandwidth on the port to a super low value at basically the same time.

Its been an hour or more, no alerts. But literally all i changed was the qualification to make it happen sooner.

So the TL;DR is ..... does a change to a threshold make the training of the datapoint start over? I see references to how long it takes to train, but nothing on whether changes reset the training, or anything that would explain this.