We have a multijob job that manages a bunch of downstream jobs. All the jobs have concurrency enabled meaning they can have multiple builds going at the same time.
When you look at a running multijob build, it will have links at the bottom saying what's running. However it seems if there are multiple builds running in the downstream job, the multijob build actually presents the status and the links to the last build of that downstream job, instead of the build the multijob job actually triggered.
The console displays the correct build and status (saying the correct build has finished, etc).