At least 2 bugs with Training Readiness:
1) Because Acute Load metrics are completely wrong (https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-955-series/298769/more-forerunner-955-bugs-load-calculation-extended-display-race-predictor/1444917#1444917), and Training Readiness is derived from them, this metric is also completely wrong. It does not understand and underestimates the impact of previous training.
"...and lighter training lately have improved your training readiness".
2) Just like with the Race Predictions, the integration/sync with the Connect App is also broken.
I check on the watch and it's actually 88 by now. No problem, let's force sync Connect:
I then open Training Readiness, and it shows 85 again! Going back to the main connect screen, and it's back to 85:
and on the main Connect dashboard it is also back to 85 now.