publishPlugins error: Server side processing failed. Please email support with reference hash: 6a3f92

Hi.
I have been able to release plugins to the Gradle Plugin Repository but now for a new plugin with exactly the same configuration I get the following error. Error below and full stack trace from test phase at PasteBin

Linux hawking 4.15.0-44-generic #47-Ubuntu SMP Mon Jan 14 11:26:59 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Both JDK 1.8 and JDK 11 same issue, latest update of both.

Any ideas would be much appreciated.

Oliver

23:53:33.480 [LIFECYCLE] [class org.gradle.internal.buildevents.TaskExecutionLogger] > Task :publishPlugins FAILED
23:53:33.480 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation ‘Task :publishPlugins’ started
23:53:33.480 [DEBUG] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Putting task artifact state for task ‘:publishPlugins’ into context took 0.0 secs.
23:53:33.480 [DEBUG] [org.gradle.internal.execution.impl.steps.SkipUpToDateStep] Determining if task ‘:publishPlugins’ is up-to-date
23:53:33.480 [INFO] [org.gradle.internal.execution.impl.steps.SkipUpToDateStep] Task ‘:publishPlugins’ is not up-to-date because:
Task has not declared any outputs despite executing actions.
23:53:33.480 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter] Executing actions for task ‘:publishPlugins’.
23:53:33.481 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation ‘Execute publish for :publishPlugins’ started
23:53:33.484 [LIFECYCLE] [com.gradle.publish.PublishTask] Publishing plugin ke.carepay.plugin.GitDiffPlugin version 1.3.0
23:53:33.558 [DEBUG] [sun.net.www.protocol.http.HttpURLConnection] sun.net.www.MessageHeader@6471d9a08 pairs: {POST /api/v1/publish/versions/new/ke.carepay.plugin.GitDiffPlugin HTTP/1.1: null}{Content-Type: application/json; charset=utf-8}{Authorization: OAuth oauth_consumer_key=“gradle”, oauth_nonce="-720482150807266240", oauth_signature=“aT0QklM328MqZFvxx3iRxzZRYfo%3D”, oauth_signature_method=“HMAC-SHA1”, oauth_timestamp=“1548197613”, oauth_token=“cZlCqZoSOArh6P2QNBCfBeFOOvLlSFuB”, oauth_version=“1.0”}{User-Agent: Java/10.0.2}{Host: plugins.gradle.org}{Accept: text/html, image/gif, image/jpeg, *; q=.2, /; q=.2}{Connection: keep-alive}{Content-Length: 976}
23:53:33.971 [DEBUG] [sun.net.www.protocol.http.HttpURLConnection] sun.net.www.MessageHeader@21c577b910 pairs: {null: HTTP/1.1 500 Internal Server Error}{Date: Tue, 22 Jan 2019 22:53:33 GMT}{Content-Type: application/json}{Transfer-Encoding: chunked}{Connection: keep-alive}{Set-Cookie: __cfduid=d8d11663c018be5499e2cb73ec59238c21548197613; expires=Wed, 22-Jan-20 22:53:33 GMT; path=/; domain=.gradle.org; HttpOnly}{Via: 1.1 vegur}{Expect-CT: max-age=604800, report-uri=“https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct”}{Server: cloudflare}{CF-RAY: 49d598ec8d6e9c77-AMS}
23:53:33.972 [DEBUG] [com.gradle.publish.OAuthHttpClient] Signed post response with code: 500 was: {“failed”:true,“errorMessage”:“Server side processing failed. Please email support with reference hash: 6a3f92”}