As of 3.1.2.ER1:
Dependency tekton-model-triggers-v1alpha1-6.6.2.redhat-00001 contains "alpha" in its name
Dependency tekton-model-triggers-v1beta1-6.6.2.redhat-00001 contains "beta" in its name

These dependencies should have redhat-xxxxx in their version, and not redhat-x:
org/jdom/jdom/1.1.3.redhat-3/jdom-1.1.3.redhat-3
org/jboss/jboss-parent/21.0.0.redhat-1/jboss-parent-21.0.0.redhat-1
org/jboss/jboss-parent/16.0.0.redhat-1/jboss-parent-16.0.0.redhat-1
org/apache/maven/maven/3.5.0.redhat-5/maven-3.5.0.redhat-5