The PlanetScale team used a new error tracking feature to troubleshoot an issue with their Insights application. They noticed occasional upticks in the "Query errors" graph and investigated further, finding that errors were coming from the `DatabaseBranchPasswords#create` action. The errors occurred when multiple nearly-simultaneous API requests were issued, causing a race condition where two threads could both query the database at the same time before either thread had created the record, resulting in an error. To solve this issue, they modified their internal tool to avoid issuing multiple password create requests in parallel. Additionally, the team improved how tags work for Insights errors, allowing users to search queries and errors based on tags with new syntax options.