Start Jenkins 2.138.1 with Gerrit Trigger plugin 2.27.7, everything configured properly, NO jobs.
Import jobs from old Jenkins 1.642.1 with Gerrit Trigger plugin 2.18.3 and restart Jenkins.
Our Review- and Deploy-Jobs do not get triggered from Gerrit Trigger plugin after committing changes for review to Gerrit or after submitting such changes.
The imported old config.xml files do not have tag <dynamicGerritProjects class="empty-list"/>. After opening and saving the configuration of these jobs this tag is added and they are triggered again.