我有一个Sonatype Nexus 3.5.0-02的安装，直到今天正常工作。 现在，通过SBT发布项目在上传jar时会产生502错误，但是poms仍然能正确上传。
> sbt publish ... [info] published my_project_2.12 to https://nexus.example.com/repository/repo/organization/my_project_2.12/0.0.2-SNAPSHOT/my_project_2.12-0.0.2-SNAPSHOT.pom [info] published my_project_sjs0.6_2.12 to https://nexus.example.com/repository/repo/organization/my_project_sjs0.6_2.12/0.0.2-SNAPSHOT/my_project_sjs0.6_2.12-0.0.2-SNAPSHOT.pom [error] java.io.IOException: PUT operation to URL https://nexus.example.com/repository/repo/organization/my_project_2.12/0.0.2-SNAPSHOT/my_project_2.12-0.0.2-SNAPSHOT.jar failed with status code 502: Bad Gateway ... [error] java.io.IOException: PUT operation to URL https://nexus.example.com/repository/repo/organization/my_project_sjs0.6_2.12/0.0.2-SNAPSHOT/my_project_sjs0.6_2.12-0.0.2-SNAPSHOT.jar failed with status code 502: Bad Gateway 这个问题才刚刚开始，但Nexus服务器或SBT项目都没有发生重大变化。 几次jar子上传正确，但这个错误大部分时间发生。
Nexus运行在一个反向代理之后，但我已经尝试增加代理超时而没有成功。
有什么build议么？