In the middle of a conversation with Valentine, my character suddenly went mute. No more dialogue/subtitles/audio at all from my character (or Dogmeat) but everyone continues on as normal.

I can't tell if it's something I did, or if it's a bug. Don't want to continue playing until this is fixed.

You may need to wait a long time.

Why you don't reload a previous save?

I did

The saves still had the same issue for some reason - even though they didn't at the time of the original save.

Can you try to sleep on a bed for some hours?

I've done it all. I also can no longer command companions. I'm so upset. I'm at least 15 hours into the game.

Hmm, i am 9.30 hours in. But i can command the dog, at least.

I will report back, if something strange happens...