Inability to search in Calendar on my Mac

Hello. I discovered today that I am unable to search for past events in Calendar on my MacBook Pro 2015. I am running Monterey, and all recent updates have been applied. I am using iCloud Calendar.

I get no results, even if I search for an event from a few days ago, or from a few weeks in the future. This issue does not replicate on my iPhone or my iPad, and all events are syncing in real time.

I've attached a screenshot, wherein I searched for an old Doctor's appointment. I've had several appointments with this Doctor and they all show up when I search on my iPhone or iPad. You will see that the search field says "Today" but the issue occurs in the Week, Month, and Year views.

I'm thinking that this is a Monetary bug. Anyone else experiencing this issue?

Many Thanks