I have the exact same problem: Recommended TR workout in Zwift and TR app is always out of sync.
Should properly mention I mainly do recommended TR workouts if I dont do a race or group ride in Zwift which is also my reason for not following a specific TR plan (just in case this could have something to do with it).
Anyway the result is: I stopped using the trainerroad app more or less completely.
I still like the TR suggestions in Zwift ofc since the TR workouts are great (even tho I am not sure they are the right ones for the day) - but would be nice to be able to see and change the recommended TR workouts in a similar way in Zwift as it’s possible in the TR app or at least provide a proper way to force a sync from the TR app to Zwift instantly so the app can be used to choose between alternate workouts.
At the moment I actually feel a bit like TR has become a quite expensive red/yellow day detection method to me.. lol 