You mentioned a rollback made production worse—what went wrong in source control?

A team learned a hard lesson when a production rollback made things worse. Hotfixes had gone directly to main without being merged back to dev, causing branches to fall out of sync. When they reverted, they inadvertently removed unrelated code, introducing new bugs. The takeaway: enforce forward-only fixes instead of blind reverts, and maintain strict branch hygiene to ensure history reflects reality.