Yes, I said "&–v‰è“c". In restoring a couple of Preferences with Time Machine I found a folder, inside the Preferences folder, called "&–v‰è“c". The folder didn't contain anything...well, nothing visible.
Any idea what this is?
iMac (Retina 5K, 27", 2017), 3.4 GHz Intel Core i5, 8GB RAM, 2400 MHz DDR4
OS Mojave 10.14.6
Canon MX710 Printer
Epson Perfection V500 Photo Scanner
Time Machine on 1TB LaCie USB-C
Carbon Copy Clone on 500GB OWC Mercury OTG Pro