I have a custom field which derives from AbstractMultiCFType and that cannot be displayed in the Issue Detail View of the Plan and Work Modes. Looking at the GH code, in the DetailViewFieldConfigurationServiceImpl class, it shows that only the following classes or classes which derives from them are supported:

• GenericTextCFType
• NumberCFType
• DateCFType
• DateTimeCFType
• UserCFType
• MultiUserCFType
• MultiGroupCFType
• LabelsCFType
• SelectCFType
• MultiSelectCFType
• VersionCFType
• CascadingSelectCFType
• EpicLinkCFType

It seems that you do not support your own base classes and many custom fields do derive from the base classes. Please at least support the AbstractMultiCFType as the MultiSelectCFType derives directly from it.