When you use SNAPSHOTs the transitive dependency versions of the plugins are not being checked correctly, indicating the the -SNAPSHOT version is older than the actual version, which in this case is the same resolved to timestamped snapshot version
Dec 13, 2016 5:22:09 PM jenkins.InitReactorRunner$1 onTaskFailed
SEVERE: Failed Loading plugin Operations Center Client Plugin v2.19.2.1-SNAPSHOT (private-e20a1be3-alobato) (operations-center-client)
java.io.IOException: Operations Center Client Plugin v2.19.2.1-SNAPSHOT (private-e20a1be3-alobato) failed to load.
- Operations Center Context v2.19.2.4-SNAPSHOT (private-6f16fea4-alobato) is older than required. To fix, install v2.19.2.4-20161201.084526-6 or later.
at hudson.PluginWrapper.resolvePluginDependencies(PluginWrapper.java:621)
at hudson.PluginManager$2$1$1.run(PluginManager.java:516)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:1038)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
It looks like PluginWarper needs to resolve the real SNAPSHOT version to properly compare.
Alvaro, this looks like a clear duplicate, please reopen if not.