My understanding of the feedback slider is that it changes your overall Form by the number on the slider, rather than changing your stars to the colour on the slider. There is a two-dimensional relationship between star colour and Form (Loww XSS and High + Peak XSS).
Here’s a chart showing how this works:
If, for some reason, your Form is actually very high it may be that the removing 60 from the total does not get you into the red. Not sure if that’s what’s going on here.
Form = Training Load - Recovery Load and goes red regardless of the Peak + High intensity Form, if it is less than -30% of your training load. This isn’t very well highlighted in Xert’s interface.
I wrote a summary of how it all works here: https://forum.xertonline.com/t/understanding-status/
It would be good if you could post screenshots of your XPMC with Training Load, Form and XSS turned on. Here’s mine:
Mike