Zwift Companion App is not always showing upcoming training

Most of the time I am able to open the zwift Companion App on my phone to see future training sessions needed for the training plan I am currently on. Some times this doesn’t work though and the app behaves like I am not a training plan at all for days at a time.

I have been on the same plan for 9 weeks and it has happened a few times now. When it happens the only way to see when my next training ride is available / needed is to open the main app on my PC.

This is using the companion app under android.