Missing main mission

Since the launch of season 1, my main mission has disappeared. I have tried uninstalling and reinstalling through the EA launcher on my PC, and also uninstalling and installing through Steam. Neither of these fixed this issue and I am lost for a solution. If there is any other troubleshooting I can do in order to fix this then I would be extremely grateful.

To note: the 'Side missions' are still available to me as you can see in the attached photo.