Welcome to INTEL forum. I will help you open a case for Design Security feature request. Kindly advise the following.
Quartus version use
You can also reply/attach your file in private message.
Done, kindly generate your license file in Self Service Licensing Center. Only the license administrator can re-generate the license file.
Guidance: https://fpgasupport.intel.com/AlteraLicensing/license/index.html --> Licensing Center Home --> Computer and License Files --> Select a computer to generate a new license file.