The plugin contains tabular markup on some form elements and will probably present issues with the tables-to-divs changes in https://issues.jenkins-ci.org/browse/JENKINS-62437
At least the following files may be affected:
- https://github.com/jenkinsci/cloudbees-folder-plugin/blob/master/src/main/resources/com/cloudbees/hudson/plugins/folder/AbstractFolder/configure.jelly
- https://github.com/jenkinsci/cloudbees-folder-plugin/blob/master/src/main/resources/com/cloudbees/hudson/plugins/folder/computed/ComputedFolder/configure-details.jelly
Some migration recipes can be found on https://www.jenkins.io/doc/developer/views/table-to-div-migration/