XSS strain score

Today was to be a recovery day after yesterday’s breakthrough effort. Since I was pushed for time I chose “Active Recovery-35”.
I began the work out with an XSS surplus of ~83. Rather than ride at the suggested ~50% of TP, I road at 90-100%of TP.
As the ride progressed, XSS rose. until around 100 it suddenly reset to ~60. The result was I ended up with essentially the same XSS as I started.

What am I missing ?

Hi Mark. Are you referring to the XSS from the ride or XSS deficit from the adaptive training advisor? A sudden increase in XSS deficit can occur when a planned workout reaches it time and is removed from your schedule but this is not what you’re describing it appears. If you can post or email us screenshots, we can perhaps better understand your issue.