This was the last year for the master hub for that year. Note the devices touching the rims? That was the issue. The master hub was swelling outwards and creating all other Master dies, Working Hubs and working dies to show this issue. The Master hub was created in 1983:
Note the progressive swelling of the master hub as each year made the devices closer to the rim:


Even
Machine Doubling pushed the devices on the rims in 1982:


Circulation and vending machines flatten the motto area. As mentioned not an error, just a die issue on all the quarters that year.
CoopHome : 1982 Quarter dies