I set up a simple Maven 2/3 job which is supposed to be build on all slave nodes sharing a label. I try to achieve this using the NodeLabel Parameter Plugin version 1.5.1. Concurrent/sequential execution - I don't care however all nodes with the label are supposed to be targeted by the same build instance.
However, when I build, only one node is ever targeted, regardless of whether the other nodes are online/offline. The one node changes between iterations.
I include screenshots of my setup as attachments. Jenkins version is 1.554.