When editing a field the following message is shown:
$rendererDescriptor.getEditVM($!description, $!issue.key, $!fieldLayoutItem.rendererType, $!field.id, $field.name, $rendererParams, false)
JEditor Renderer is missing from the list of field renderers in Field Configurations.
JEditor wasn't installed correctly. Sometimes UPM fails to install and activate all add-on modules. We are still investigating why this particular error is happening.
How to solve
Re-installing JEditor should solve this problem.
After re-installing check if the following module is enabled (if it's not, enable it manually):
- JEditor Renderer (com.jiraeditor.jeditor.renderer)