Airdrop to iMac only works when airdrop window is open.
This was never a problem before; airdrops from iPhone and iPad went through automatically.
Airdrop is set to "everyone," all devices on same iCloud account, all up to date.
When I am sitting at my computer and try to send from another device I hear the pleasant "dingdingding" indicating a file is incoming. The downloads icon in the dock bar bounces as if it has received something. When I open the downloads folder there is nothing there.
If I do all of the above while the airdrop window is open, I get the "plunk" sound associated with moving files, and the item I sent is now in the downloads folder.
How can I get back to not having to have the airdrop folder open to receive on my iMac?
iMac 21.5″, macOS 12.4