SBT无法下载com.typesafe.sbt:sbt-js-engine依赖求助

今日起CI无法构建PlayFramework项目，根源是依赖解析失败。我克隆了PlayFramework官方示例项目，结果仍遇到同样问题，缺失com.typesafe.sbt:sbt-js-engine:1.2.3 (scalaVersion=2.12, sbtVersion=1.0)依赖，具体错误日志如下：

[warn]
[warn]  Note: Some unresolved dependencies have extra attributes.  Check that these dependencies exist with the requested attributes.
[warn]      com.typesafe.sbt:sbt-js-engine:1.2.3 (scalaVersion=2.12, sbtVersion=1.0)
[warn]
[warn]  Note: Unresolved dependencies path:
[error] sbt.librarymanagement.ResolveException: Error downloading com.typesafe.sbt:sbt-js-engine;sbtVersion=1.0;scalaVersion=2.12:1.2.3
[error]   Not found
[error]   Not found
[error]   not found: https://repo1.maven.org/maven2/com/typesafe/sbt/sbt-js-engine_2.12_1.0/1.2.3/sbt-js-engine-1.2.3.pom

not found: https://repo.typesafe.com/typesafe/releases/com/typesafe/sbt/sbt-js-engine_2.12_1.0/1.2.3/sbt-js-engine-1.2.3.pom

核心问题集中在这个库的下载失败：

Error downloading com.typesafe.sbt:sbt-js-engine;sbtVersion=1.0;scalaVersion=2.12:1.2.3

我检查了Maven中央仓库中对应路径，发现相关依赖已全部缺失。

请问我可以采取什么解决措施？或者能否告知这些构件被移除的原因？

更新 #

原Typesafe发布仓库已重定向至Lightbend的Cloudsmith仓库，怀疑问题出在该新仓库服务上。

更新#2 #

sbt的GitHub仓库已创建相关故障工单（感谢@SethTisue）

内容的提问来源于stack exchange，提问作者tostao