mimikatz closes when trying to export certificate to DER

I lost access to EFS encrypted files after reinstalling windows, and I finally found a method to build a PFX certificate here. After recovering files in "SystemCertificates" folder, I tried to "export certificate and its public key to DER" using crypto::system, and mimikatz closed with the following output: * File: 'CERTIFICATE_FILE_NAME' I have tried it on a few machines, including a Windows XP VM, and with privilege::debug. I also tried crypto::system with current certificates, and everything is working as expected. Is it normal, or can anyone help me, please?