I hadn't heard about this. Weird.
"Banks around the U.S. are running low on nickels, dimes, quarters and even pennies. And the Federal Reserve, which supplies banks, has been forced to ration scarce supplies."
"During the lockdown, many bank lobbies where people can recycle coins were off limits. And coin-sorting kiosks in retail stores saw reduced traffic. With many businesses closed, unused coins piled up in darkened cash drawers, in pants pockets and on nightstands, even as banks went begging....The flow of coins through the economy ... kind of stopped,"