A routine maintenance malfunction was the cause of the temporary interruption during which the database was unavailable to a subset of makers.
The data created before/after the maintenance window (10 July, 10:27 PM PST to 11 July, 12:22 AM PST) is unaffected, while data created between the window would not have saved. We regret this inconvenience.
This issue is corrected, and we are looking into how to help prevent future interruptions. The databases are up and running. If you see any ongoing issues that appear related to this, please submit a support ticket and we will investigate further.