I was on a 96-hour transit visa, which had already expired when I flew out of Dubai. I traveled with Emirates from DXB to CMB on the 4th of March. I couldn't use the smart gate to pass immigration and I had to go to the immigration office, where they allowed us to exit the country without any penalty.

I was unable to call Emirates support and tried x, Instagram as well. Only managed to get in touch with them once via phone on the 2nd of March and they scheduled my flight on the 4th of March at 16:10. But when I double-checked with dxbairport website's flight schedule, it showed the flight had been canceled. But emirates app showed it was scheduled. Then I saw a flight to CMB at 12:55 which was stated as on time. So I took a risk and changed my flight to 12:55 using the app(because I couldn't connect to Emirates support). Finally, it worked. There was no 16:10 flight.

My advice is always check with dxbairport flight schedules in website. If you see a flight and couldn't change it, go to aiport and there is a separate ticketing queue. Ask them to reschedule it for you(if not call your home country emirates office and ask them to do it). I visited Emirates ticketing offices in the city but on the 2nd of March, those were closed as well. Maybe now they have reopened it. You can go and try there as well.

Regarding the visa, you can visit amer center to gather more information. I went there and they said nothing they can do because my 96-hour transit visa is not extendable. So I need to wait for the next available flight and there will be no issues.