Switch Tracking off and apply noise reduction. You will now see what all the "signal evolution Tracking" fuss is about, as StarTools seems to know exactly where the noise exists in your image, snuffing it out.
The 'AutoMask' button launches a popup with access to two quick ways of creating a star mask.
Stacking artefacts are the most common dark anomalies located at the edges of your image.
The reason Wipe backs off is that Wipe (as is the case with most modules in StarTools) refuses to clip your data.
Amp glow is faint "glow" near one or more edges caused by local thermal noise from heat-dissipating electronics.
You can convert everything you see to a format you find convenient. Give it a try!