The multi-slave-config plugin has custom forks of several jelly widgets that may break with the tables-to-divs changes:

• f:entry https://github.com/jenkinsci/multi-slave-config-plugin/blob/cb72b3d9e7537fc3e1f3b15907cf1dce521cb9d2/src/main/resources/util/entry.jelly
• f:dropdownList https://github.com/jenkinsci/multi-slave-config-plugin/blob/master/src/main/resources/util/dropdownList.jelly

It needs to be reviewed and fixed if needed.