I connected TrainerDay with Strava when I first upgraded, and from that created a Coach Jack Plan. I completed my first workout and it showed up on Strava. A couple days later I completed my next workout, however it never showed up on Strava. I have since completed a total of 5 workouts and only the first one is in Strava.
I tried using the Strava sync link on My Activities page, and the 4 workouts not uploaded have the Strava icon in the upper right corner of each blinking, and when I hover on them the pop-up says “Sync in progress”.
I have tried disconnecting from Strava and re-connecting, then hitting the Strava sync link. However, these 4 workouts still show “Sync in progress”. Also these workouts don’t show up on my Intervals.icu Activities page, but perhaps if they get up to Strava then they will sync up to Intervals.icu from Strava.