Azure Marketplace - Unreal Pixel Streaming SSL failing

I enabled SSL on the Market Place wizard. I pasted 2 plain Base64 codes for the private/public keys as instructed. However, after the installation the Match Maker is not starting

init lifecycle module
node:internal/tls/secure-context:69
    context.setCert(cert);
            ^

Error: error:0480006C:PEM routines::no start line
    at node:internal/tls/secure-context:69:13
    at Array.forEach (<anonymous>)
    at setCerts (node:internal/tls/secure-context:67:3)
    at configSecureContext (node:internal/tls/secure-context:156:5)
    at Object.createSecureContext (node:_tls_common:117:3)
    at Server.setSecureContext (node:_tls_wrap:1352:27)
    at Server (node:_tls_wrap:1211:8)
    at new Server (node:https:74:3)
    at Object.Server (node:https:58:41)
    at Object.<anonymous> (C:\Unreal_1\WindowsNoEditor\Engine\Source\Programs\PixelStreaming\WebServers\Matchmaker\matchmaker.js:122:31) {
  library: 'PEM routines',
  reason: 'no start line',
  code: 'ERR_OSSL_PEM_NO_START_LINE'
}

the generated certificates do not seem correct to me. Can you confirm the correct process and any remedial steps to get the platform running?

I guess what the instructions were actually asking to be pasted in there were the contents of a private and public key cert?