Problem with sbt-sonatype profile-target-matching-staging

Hey there, I need a little advise. I am almost finished with releasing to maven, but there is still one thing getting in my way. Here is the error message I encounter:

[info] Finished bundle upload: D:\Programming\Repos\ezXML\target\sonatype-staging\0.1
[info] Closing staging repository [comgithubjulienst-1006] status:open, profile:com.github.julienst(324d1c9caef218) description: [sbt-sonatype] ezXML 0.1
[info] Activity name:open, started:2020-03-05T20:17:54.101Z, stopped:2020-03-05T20:18:51.040Z
[info] repositoryCreated: id:comgithubjulienst-1006, user:JulienSt, ip:77.13.5.222
[info] Activity name:close, started:2020-03-05T20:19:31.291Z
[info]   Evaluate: id:5e9e8e6f8d20a3, rule:sources-staging
[info]   Evaluate: no-traversal-paths-in-archive-file
[info]     Passed: no-traversal-paths-in-archive-file
[info]   Evaluate: pom-staging
[info] The close process is in progress ...
[info]     Passed: pom-staging
[info]   Evaluate: profile-target-matching-staging
[info] The close process is in progress ...
[info]     Failed: profile-target-matching-staging, failureMessage:Profile target mismatch: /JulienSt/ezxml-extension_2.13/0.1/ezxml-extension_2.13-0.1.pom
[info]   Evaluate: checksum-staging
[info]     Passed: checksum-staging
[info]   Evaluate: javadoc-staging
[error] Failed to close the repository
[error] Activity name:close, started:2020-03-05T20:19:31.291Z
[error]     Failed: profile-target-matching-staging, failureMessage:Profile target mismatch: /JulienSt/ezxml-extension_2.13/0.1/ezxml-extension_2.13-0.1.pom
[error] java.lang.Exception: Failed to close the repository

My sonatype ticket can be found here: https://issues.sonatype.org/browse/OSSRH-55603

As mentioned there, something seems to be wrong with my group Id. As the output shows mismatch: /JulienSt/ezxml- ... and not something with github included.

Does somebody know whats happening here?

This is the repo in question:

And this is the build.sbt

name := "ezXML"

ThisBuild / organization := "com.github.julienst"
ThisBuild / version := "0.1"
ThisBuild / scalaVersion := "2.13.1"
ThisBuild / libraryDependencies := Seq (
    "org.scala-lang.modules" %% "scala-xml" % "1.2.0", // https://mvnrepository.com/artifact/org.scala-lang.modules/scala-xml
    "junit" % "junit" % "4.12" % Test, // https://mvnrepository.com/artifact/junit/junit
    "org.scalatest" %% "scalatest" % "3.1.1" % Test // https://mvnrepository.com/artifact/org.scalatest/scalatest
    )

lazy val core = (project in file("core")).settings(name := "ezxml.core")
lazy val extension = (project in file("extension")).dependsOn(core).settings(
    name := "ezxml.extension",
    scalacOptions += "-Ymacro-annotations",
    libraryDependencies += "org.scala-lang" % "scala-reflect" % "2.13.1", // https://mvnrepository.com/artifact/org.scala-lang/scala-reflect,
)

lazy val root = (project in file(".")).aggregate(core, extension)


ThisBuild / publishTo := sonatypePublishToBundle.value
ThisBuild / sonatypeProfileName := "JulienSt"
ThisBuild / licenses := Seq("MIT" -> url("https://raw.githubusercontent.com/JulienSt/ezXML/master/LICENSE"))
ThisBuild / publishMavenStyle := true
ThisBuild / homepage := Some(url("https://github.com/julienst/ezxml"))
ThisBuild / scmInfo := Some(
    ScmInfo(
        url("https://github.com/julienst/ezxml"),
        "scm:https://github.com/JulienSt/ezXML.git"
        )
    )
ThisBuild / developers := List(
    Developer(id="com.github.julienst", name="Julien Stengel", email="julien.stengel@gmail.com", url=url("https://github.com/julienst"))
)

I already switched out the scm, groupId, Devloper(id=), and sonarTypeProfileName, but nothing seems to matter.
So, if somebody knows whats up, please let me know.