Happened to be before, 2nd leg of the flight was cancelled for unknown reason few hours before the first leg took off.
I booked online and the booking agency send an email saying to contact the Airline but it was 5am in the morning and closed.
Airline was able to get me on a difference flight later in the day though, no extra costs with meal vouchers
Are both legs with Etihad? Booked at the same time?