Periodically, Spotlight stops responding to keyboard input on my Mac. When this happens, pressing cmd-space brings up the Spotlight search field, but typing search terms has no effect. Characters don't appear in the search field, and even pressing
ESC doesn't exit from Spotlight. The keyboard continues to work normally in every other app-- only Spotlight is affected.
Rebooting restores normal operation but I'm hoping there's some non-reboot way to get things working again.
I'm running macOS 10.12.5 (16F73) on a 15" touch bar MacBook Pro. Both the internal keyboard and an external Apple USB keyboard are affected.