So my first time called out to defend them was against raiders, then later supermutants (maybe twice).

The latest was from an Institute Synth attack.

Upshot is:

• a Legendary one was present and I got a piece of gear.

The downside?

• If I leave by fast travel I get a failure message despite hanging out for 3 days (waiting and sleeping) but I never get the completion message!

I'd rather not have it fail as repairing everything uses my tightly limited resources at this point! Any ideas?