This workaround required for projects which are exported earlier than N+1 release.
Import earlier exported project
Open Signal Flow designer , if all LUT objects belong to same group, launch panel by double clicking any LUT object.
If each LUT objects belongs to different groups. Launch panels separately for each group.
Close opened LUT panels.
Open Parameter sets view , right click on column header of red color highlighted set and click ‘Store’ context menu to get latest set values.
You can observe red highlights are cleared and units are removed for each state variable.