pkcs12_import_from_file_v2 throwing 'Internal Error'

I am trying to update the certificate for the management gui via Management/KeyCertificate::pkcs12_import_from_file_v2() and sometimes it works, but most of the time I get the following error:

Exception caught in Management::urn:iControl:Management/KeyCertificate::pkcs12_import_from_file_v2()
Internal Error; connection not set and no session from which to get it

Here is the xml being sent

   
   
      
         MANAGEMENT_MODE_WEBSERVER
         
            server
         
         
            /var/tmp/foo.p12
         
         
            foo
         
         STYPE_NORMAL
         
            
         
         true
      
   

Here is the response:

SOAP-ENV:Server
Exception caught in Management::urn:iControl:Management/KeyCertificate::pkcs12_import_from_file_v2()
Internal Error; connection not set and no session from which to get it

I've verified that the p12 is good by decrypting/examining it using openssl pkcs12 I've also verified that the p12 file has the proper permissions to be read. It works once in great while for some unknown reason but mostly just fails.

Has anyone run into this? I'm running 11.5.2 HF1 This also happened on 11.5.1 HF8