Missing related list/field.Issue You are missing a particular related list option for any given tableReleaseParisCauseThe field the Related List is based on may have a different name causing the name of the related list to be different which may cause confusion. In this example, the 'Change Request -> Parent' related list and the Parent field on change requests appeared to be missing It turned out that the parent field had been customized and given a different name instead of being called Parent it is called 'Parent CIM Phase' so instead of seeing 'Change Request -> Parent' as a related list option you are seeing 'Change Request -> Parent CIM Phase' which is the same thing just with a different column label ResolutionIt might be a good idea not to change the column label for out-of-box fields especially ones from the Task table that extend to multiple tables which may cause confusion. Creating a custom field instead of relabeling one might be the better option.