ID:20975 When you disable PUF wrapped encryption key, you must specify the Battery Backup RAM or eFuses option for the Encryption Key Select.

CAUSE: Cannot disable PUF wrapped encryption key if Encryption Key Select is Physical Unclonable Function.

ACTION: Set Encryption Key Select to eFuses or Battery Backup RAM. Alternatively do not disable PUF wrapped encryption key in security options on the Intel Quartus Prime software Assignments Device and Pin Options menu.