Last Tour Glitch

I’ve done this run before without issue, but this time I took the tomb colonists to Gaider’s Mourn and had my crew watch them successfully—but their destination hasn’t updated?

I tried restarting the game, and I tried going to another island and then back to Gaider’s Mourn (the tomb colonists story did not pop up again). And then just for kicks I tried sailing on to Khan’s Glory figuring it was the next destination, but the tomb colonist story did not pop up there, and the objective still hasn’t changed.

Nothing has worked, and I don’t know what to do.