I have a mission (Scavenger Investigation) where I have some popup-dialogs before the first transition to a mission map. In this particular case, the transition is also from a door on Drozana Station, though I am not sure that is relevant.
I accepted the mission in Sector Space and the pop-up dialogs came as expected. While reading them, I already set a course to Eta Eridani. As I confirmed the destination and triggered my Quantum Slipstream Device, the dialog closed immediately and did not continue. There was no low-priority interaction button to continue the dialog.
I am not sure if this problem is Foundry specific, or a general problem with the fact that certain interactions forcibly close dialogs. But normally, there would be a button to continue or restart the dialog, in this case, there wasn't. Even entering the actual mission map didn't trigger it.