Error in Step 3: Account registration failed. Please start back at Step 1.

Step 1 and 2 worked fine but in step 3 I get the following error:

>Error: Account registration failed. Please start back at Step 1. { "type": "urn:ietf:params:acme:error:badNonce", "detail": "JWS has an invalid anti-replay nonce: \"0103QwMp1UWXcX5B5sSQBIDWzJL5ak3waWsArRm_875tX3A\"", "status": 400 }

I tried a second time and got the following error:
>Error: Account registration failed. Please start back at Step 1. { "type": "urn:ietf:params:acme:error:malformed", "detail": "JWS verification error", "status": 400 }

I entered the single line output of the `echo -n "eyJ1...1ZX0" | openssl dgst -sha256 -hex -sign $PRIV_KEY"` command as:
`(stdin)= 1a7f....0835`
(actual full strings shortened here for brevity).

Maybe the nonce part of the ACME protocol changed or something?