This was a issue with GCP cloud provider. Here is Google’s response:
We are writing to follow up on the technical issue reported on January 14, 2026, regarding delayed Billing data exports to BigQuery. We are pleased to confirm that this issue was resolved on January 18, 2026.What you need to know
The technical issue reported on January 14, 2026, has been resolved as of January 18, 2026. All delayed cost data is now available, and exports are functioning as expected.Thank you for your patience while we worked to fix this.