App appears on all desktops
My Calendar app appears on all desktops. iMac M1 a little over a year old. Not sure exactly when it started but within the past month.
As soon as the Calendar App is opened it spreads to all desktops. If I open a new desktop, the calendar is there too. If I close any of them they all close.
OS Ventura 13.0.1
I've rebooted, no luck.
No other app does this.
Ideas? suggestions?
iMac (24-inch, M1, 2021, 2 ports)