Can’t search past or future calendar events after migrating to iPhone 17 Pro

I am using 17 Pro, migrated from previous model.

I cannot search any event that is not created in 17 Pro - whether backwards or forward.

This does not work as I need to refer all past and future events that are booked until May 2026.

All settings are correct - Synced all events, iOS updated.

Please fix this bug. Or is there a workaround? I am now searching day by day.

[Re-Titled by Moderator]

Original Title: calendar ios26