There is currently a major glitch in Covenant. I will attempt to describe it without spoiling anything.
If you side with Covenant and have them join the Minutemen, at times they will be assigned for random tasks by Preston. The clearing of raiders, kidnapping rescues, and the like.
However, once you go to accept these quests, the Mayor of Covenant and other characters have NO AUDIO IN PLACE for this situation. Unless you have subtitles on, you wouldn't know the game is doing anything. The missions progress as normal, but it looks like either no audio was recorded for this example, or the game is calling it wrong.
This is something only Bethesda can fix if the audio is missing, or an unofficial patch if it's just a missed call.