Also having this issue. I waited 72 hours, re-did the Act 1 multiple times with different save files and even then nothing so far. Made a ticket for support and currently waiting for a response to see if the issue can be resolved.
Update: Shipset seems to have been unlocked automatically took around 5 days in total since finishing Act 1. I did not get a response on the ticket so I am not sure if someone saw it and helped me fix it or it unlocked on it's own. Regardless for anyone still having the same issue, send a ticket after 72 hours and just wait and see what happens.