Opposite for me too - spending has actually been ramping up since this morning. not sure if it's a platform delay or just my campaign mix, but here's what I'm seeing:
✅ Instagram Story ads: steady spend, even slightly ahead of yesterday
✅ Facebook feed: normal pacing, no anomalies
❌ Audience Network? yeah, that's a different story. Almost zero activity there, but that's been a pattern for weeks.
maybe it's account-level? worth checking if you're using Advantage+ or manual bidding.