As @potsiea said all training sessions have ERG mode implemented. So if you did not experience ERG mode then something may definitely be wrong in terms of trainer connection.
We have changed the functionality in the latest version, so that your trainer does not show up as a seperate power and cadence device but it is all (power and cadence) presented in the trainer panel. If you start riding while the equipment setup panel is present do you see the power and cadence change?
Also we have seen that changing the Ant+ dongle to a different port can fix any connection issues.