NSF proposal status changed from Recommended to Pending

PD reached out about a month ago and told me that our proposal was under consideration for funding, submitted a few items and waited for updates. Last week, the status was changed from pending to recommended, so excited, shared the news to other PIs. Today, tried to login and download the reviewers' comments, found that the status was changed again today from Recommended to Pending. So confused, anyone had a similar experience? Thoughts?