Steps to reproduce:

1. Create Maven build job #1. In the build job, check "Disable automatic artifact archiving".
2. Create build job #2. Add "Copy artifacts from another project" build step. Set "Project name" to project #1. Set "Which build" to "latest successful build". Set "Artifacts to copy" to an existing artifact in project #1, e.g. **/my.war.
3. Build job #2 fails with this error:

   Unable to access upstream artifacts area D:\jenkins\jobs\job1\modules\my.package$myapp\builds\510\archive. Does source project archive artifacts?
   ERROR: Unable to find a build for artifact copy from: JOB1

Work-around:
In job #2, set "Which build" to "Specified by permalink". Set permalink to "lastSuccessfulBuild".