Yeah, that happened to me several times too. I think a lot of people quickly jumped on it and whatever they have going on in the backend is scaling poorly and returning blank generations. It worked well for 20 minutes right after launch, so a lot of my results were from that.
EDIT: I just got 100 more boosts after about 24 hours, so it seems that they periodically replenish after you run out.
Yeah, that happened to me several times too. I think a lot of people quickly jumped on it and whatever they have going on in the backend is scaling poorly and returning blank generations. It worked well for 20 minutes right after launch, so a lot of my results were from that.
EDIT: I just got 100 more boosts after about 24 hours, so it seems that they periodically replenish after you run out.
Good to know!